분대 시스템 추가

초대 기능 버그 수정

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_18" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Project.The_SEED.iml" filepath="$PROJECT_DIR$/Project.The_SEED.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

Account.java

@@ -1,21 +0,0 @@
-package org.poopki.duckdns.user_db;
-
-public class Account {
-    private int m_Balance;
-
-    public Account(int Balance){ // Account Balance 초기화
-        m_Balance = Balance;
-    }
-
-    public int getBalance(){ return m_Balance; } //잔액 return 
-    public void credit(int Amount){ // 입금
-        m_Balance +=Amount;
-    }
-    public boolean withdraw(int Amount){ // 출금
-        if(m_Balance >= Amount){
-            m_Balance -= Amount;
-            return true;
-        }
-        return false;
-    }
-}

Array/Account.java

@@ -0,0 +1,34 @@
+package org.poopki.duckdns.user_db.Array;
+
+public class Account {
+    private int m_Balance;
+    private int MAX_BALANCE = 2147483647;
+    public Account(int Balance){ // Account Balance 초기화
+        m_Balance = Balance;
+    }
+    public boolean setBalance(Long Amount){
+        if(Amount<MAX_BALANCE) {
+            m_Balance = Amount.intValue();
+            return true;
+        }else{
+            return false;
+        }
+    }
+    public int getBalance(){ return m_Balance; } //잔액 return 
+    public boolean credit(Long Amount){ // 입금
+        if(m_Balance+Amount < MAX_BALANCE) {
+            m_Balance += Amount.intValue();
+            return true;
+        }
+        else{
+            return false;
+        }
+    }
+    public boolean withdraw(Long Amount){ // 출금
+        if(m_Balance >= Amount){
+            m_Balance -= Amount.intValue();
+            return true;
+        }
+        return false;
+    }
+}

Array/AccountArray.java

@@ -1,4 +1,4 @@
-package org.poopki.duckdns.user_db;
+package org.poopki.duckdns.user_db.Array;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -7,15 +7,26 @@ import java.util.UUID;
 public class AccountArray {
     private static Map<UUID, Account> m_AccountArray = new HashMap<UUID, Account>();
 
-    public void transfer(UUID Src, UUID Des, int Amount){ // 송금 method
+    public int transfer(UUID Src, UUID Des, Long Amount){ // 송금 method
         Account m_Src = m_AccountArray.get(Src);
         Account m_Des = m_AccountArray.get(Des);
 
         if(m_Src.withdraw(Amount)){ //인출 성공시 입금
-            m_Des.credit(Amount);
+            if(m_Des.credit(Amount))
+            {
+                return 1;
+            }
+            else{
+                m_Src.credit(Amount);
+                return 2;
+            }
+        }
+        else {
+            return 3;
         }
     }
 
+
     public int getAccountInfo(UUID uuid) { // DB backup시 account 정보 접근 method
         Account m_Account = m_AccountArray.get(uuid);
         return m_Account.getBalance();
@@ -24,4 +35,9 @@ public class AccountArray {
     public void putAccountInfo(UUID uuid, int Amount) { //AccountArray 생성
         m_AccountArray.put(uuid, new Account(Amount));
     }
+
+    public boolean setAccountInfo(UUID uuid, Long Amount) {
+        Account m_Account = m_AccountArray.get(uuid);
+        return m_Account.setBalance(Amount);
+    }
 }

Array/AccountEventHandler.java

@@ -0,0 +1,119 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class AccountEventHandler implements CommandExecutor {
+    AccountArray m_AccountArray;
+    UserInfoArray m_UserInfoArray;
+    public AccountEventHandler(UserInfoArray UIA, AccountArray AA){
+        m_AccountArray = AA;
+        m_UserInfoArray = UIA;
+    }
+    public static boolean isStringDouble(String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        Player p = (Player) sender;
+
+        if (args.length != 0) {
+            switch (args[0]) {
+                case "설정":{
+                    if (!p.isOp()) {
+                        p.sendMessage("관리자만 실행 가능한 명령어입니다.");
+                        return false;
+                    }
+                    if (args.length < 1) {
+                        p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("설정 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("설정 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(m_AccountArray.getAccountInfo(op)+Long.parseLong(args[2])>2147483647){
+                        p.sendMessage("최대 금액 이상으로 설정할 수 없습니다.");
+                        return false;
+                    }
+                    m_AccountArray.setAccountInfo(m_UserInfoArray.getUserUUID(args[1]), Long.parseLong(args[2]));
+                    p.sendMessage(args[1] + "님의 잔액을 " + Integer.parseInt(args[2]) + "원으로 설정하였습니다.");
+                    break;
+                }
+
+                case "입금": {
+                    if (args.length < 1) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("이체 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("이체 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 이체할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(p.getUniqueId(), op, Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "농장에 " + Integer.parseInt(args[2]) + "원을 이체하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+
+                case "잔액": {
+                    p.sendMessage("==잔액: " + m_AccountArray.getAccountInfo(p.getUniqueId()) + "원==");
+                    break;
+                }
+                default: {
+                    p.sendMessage("잘못된 명령어");
+                }
+
+            }
+        }
+        else{
+            p.sendMessage("명령어를 입력하세요(잔액 | 이체)");
+        }
+        return true;
+    }
+}

Array/Farm.java

@@ -0,0 +1,11 @@
+package org.poopki.duckdns.user_db.Array;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class Farm extends Group{
+    public Farm(String Name, List<UUID> uuid_list){
+        super(Name, uuid_list);
+    }
+}

Array/FarmArray.java

@@ -0,0 +1,12 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.Bukkit;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.*;
+
+public class FarmArray extends GroupArray{
+    public FarmArray(UserInfoArray m_UIA){
+        super(m_UIA, 10);
+    }
+}

Array/FarmEventHandler.java

@@ -0,0 +1,286 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class FarmEventHandler implements CommandExecutor {
+
+    FarmArray m_FarmArray;
+    UserInfoArray m_UserInfoArray;
+    AccountArray m_AccountArray;
+    UUID ZERO_UUID = new UUID(0,0);
+    public FarmEventHandler(UserInfoArray UIA, FarmArray GA, AccountArray AA){
+        m_FarmArray = GA;
+        m_UserInfoArray = UIA;
+        m_AccountArray = AA;
+    }
+    public static boolean isStringDouble(String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        Player p = (Player) sender;
+
+        if (args.length != 0) {
+            switch (args[0]) {
+                case "생성":{
+                    UUID tempUUID = UUID.randomUUID();
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm").equals(ZERO_UUID)){
+                        p.sendMessage("이미 농장을 소유중"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"));
+                        return false;
+                    }
+
+                    if(!m_FarmArray.CreateGroup(tempUUID, args[1], p.getUniqueId())){
+                        p.sendMessage("이미 존재하는 농장 이름");
+                        return false;
+                    }
+
+                    m_UserInfoArray.setUserGroupUUID("Farm",p.getUniqueId(), tempUUID);
+                    m_AccountArray.putAccountInfo(tempUUID,0);
+
+                    for (UUID key: m_UserInfoArray.getKeySet()){
+                        p.sendMessage("------------"+p.getUniqueId());
+                        p.sendMessage(""+m_UserInfoArray.getUserGroupUUID(key,"Farm"));
+                    }
+
+                    p.sendMessage(args[1]+"농장이 생성되었습니다.");
+                    p.sendMessage("농장 멤버 목록: ");
+
+                    for (String Name: m_FarmArray.GetGroupMembersName(tempUUID)){
+                        p.sendMessage(Name);
+                    }
+
+                    p.sendMessage("농장 목록:");
+
+                    for (String Name: m_FarmArray.GetGroupNameList()){
+                        p.sendMessage(Name);
+                    }
+                    break;
+                }
+
+                case "가입":{
+                    p.sendMessage("플레이어 UUID:"+p.getUniqueId()+"  농장 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"));
+                    p.sendMessage("ZERO UUID:"+ZERO_UUID);
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm").equals(ZERO_UUID)){
+                        p.sendMessage("이미 가입한 농장이 존재");
+                        return false;
+                    }
+                    else{
+                        p.sendMessage("가입 완료");
+                        m_FarmArray.SignUpGroup("Farm",m_FarmArray.m_GroupNameList.get(args[1]),p.getUniqueId());
+                        p.sendMessage("농장 멤버 목록: ");
+                        for (String Name: m_FarmArray.GetGroupMembersName(m_FarmArray.m_GroupNameList.get(args[1]))){
+                            p.sendMessage(Name);
+                        }
+                        p.sendMessage("농장 목록:");
+                        for (String Name: m_FarmArray.GetGroupNameList()){
+                            p.sendMessage(Name);
+                        }
+                    }
+                    break;
+                }
+
+                case "초대":{
+                    p.sendMessage("초대 테스트");
+                    break;
+                }
+
+                case "강퇴":{
+                    p.sendMessage("강퇴 테스트"+args[1]);
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm").equals(ZERO_UUID)){
+                        p.sendMessage("가입한 농장이 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"));
+                        return false;
+                    }
+
+                    if(!m_FarmArray.isOwner(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"), p.getUniqueId())){
+                        p.sendMessage("농장주만 사용 가능한 명령어"+ p.getUniqueId());
+                    }
+
+                    if (args.length < 1) {
+                        p.sendMessage("강퇴할 대상을 지정");
+                        return false;
+                    }
+
+                    UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 대상");
+                        return false;
+                    }
+
+                    if(!m_FarmArray.isGroupMember(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"),op)) {
+                        p.sendMessage("농장에 가입되지 않은 유저");
+                        return false;
+                    }
+
+                    m_FarmArray.ExpulsionGroupPlayer("Farm", m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"), op);
+                    break;
+                }
+                case "탈퇴": {
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm").equals(ZERO_UUID)){
+                        p.sendMessage("가입한 농장이 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"));
+                        return false;
+                    }
+                    else{
+                        p.sendMessage("탈퇴 플레이어 UUID:"+p.getUniqueId()+"  농장 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Farm"));
+                        m_FarmArray.ExpulsionGroupPlayer("Farm",m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Farm"),p.getUniqueId());
+
+                    }
+                    break;
+                }
+                case "이름":{
+                    p.sendMessage("현재 파티 이름"+m_FarmArray.GetGroupName(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Farm")));
+                    break;
+                }
+                case "정보": {
+                    for (String Name: m_FarmArray.GetGroupNameList()){
+                        p.sendMessage("농장 이름:");
+                        p.sendMessage(Name);
+                        p.sendMessage("인원 목록");
+                        for (String Name2: m_FarmArray.GetGroupMembersName(m_FarmArray.m_GroupNameList.get(Name))) {
+                            p.sendMessage(Name2);
+                        }
+                        p.sendMessage("계좌 잔액:"+m_AccountArray.getAccountInfo(m_FarmArray.m_GroupNameList.get(Name)));
+                    }
+                    break;
+                }
+                case "계좌설정":{
+                    if (!p.isOp()) {
+                        p.sendMessage("관리자만 실행 가능한 명령어입니다.");
+                        return false;
+                    }
+                    if (args.length < 1) {
+                        p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_FarmArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("설정 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("설정 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(m_AccountArray.getAccountInfo(op)+Long.parseLong(args[2])>2147483647){
+                        p.sendMessage("최대 금액 이상으로 설정할 수 없습니다.");
+                        return false;
+                    }
+                    m_AccountArray.setAccountInfo(op, Long.parseLong(args[2]));
+                    p.sendMessage(args[1] + "님의 잔액을 " + Integer.parseInt(args[2]) + "원으로 설정하였습니다.");
+                    break;
+                }
+
+                case "입금": {
+                    if (args.length < 1) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_FarmArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("이체 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("이체 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 이체할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(p.getUniqueId(), op, Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "농장에 " + Integer.parseInt(args[2]) + "원을 이체하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+
+                case "출금": {
+                    if (args.length < 1) {
+                        p.sendMessage("출금 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("출금 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_FarmArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("출금 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("출금 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 출금할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(op, p.getUniqueId(), Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "농장에 " + Integer.parseInt(args[2]) + "원을 출금하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+                case "잔액": {
+                    p.sendMessage("==잔액: " + m_AccountArray.getAccountInfo(m_FarmArray.GetUUID(args[1]))+ "원==");
+                    break;
+                }
+                default: {
+                    p.sendMessage("잘못된 명령어");
+                }
+            }
+        }
+        return true;
+    }
+}

Array/Group.java

@@ -0,0 +1,52 @@
+package org.poopki.duckdns.user_db.Array;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.UUID;
+
+public class Group {
+    private String m_Name;
+    private List<UUID> m_MemberList = new ArrayList<>();
+    UUID ZERO_UUID = UUID.fromString("00000000-0000-0000-0000-000000000000");
+    int MAX_FARM_NUM = 10;
+
+    public Group(String Name, List<UUID> uuid_list){
+        int index = 0;
+        for(UUID key: uuid_list){
+            m_MemberList.add(index,key);
+            index++;
+        }
+        m_Name = Name;
+    }
+
+    public void SignUp(UUID uuid){
+        m_MemberList.add((UUID)uuid);
+    }
+
+    public void Expulsion(UUID uuid){
+        m_MemberList.remove(uuid);
+    }
+
+    public boolean isMember(UUID uuid){
+        return m_MemberList.contains(uuid);
+    }
+    public int getMemMaxNUM(){
+        return MAX_FARM_NUM;
+    }
+    public List<UUID> getGroupMembers(){ return m_MemberList;}
+    public int getMemNUM(){
+        int num = m_MemberList.size();
+        return num;
+    }
+
+    public String getGroupName(){ return m_Name; }
+    public int isEmpty(){return m_MemberList.size();}
+    public boolean isOwner(UUID uuid){
+        if(m_MemberList.get(0).equals(uuid)){
+            return true;
+        }else{
+            return false;
+        }
+    }
+}

Array/GroupArray.java

@@ -0,0 +1,170 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.*;
+
+public class GroupArray {
+
+
+    protected Map<UUID, Group> m_GroupArray;
+    protected Map<String, UUID> m_GroupNameList;
+    public List<UUID> m_DeleteQueue = new ArrayList<>();
+    UserInfoArray m_UserInfoArray;
+    UUID ZERO_UUID = UUID.fromString("00000000-0000-0000-0000-000000000000");
+    int MAX_GROUP_NUM = 10;
+
+    public GroupArray(UserInfoArray m_UIA, int num){
+        m_UserInfoArray = m_UIA;
+        m_GroupArray = new HashMap<UUID, Group>();
+        m_GroupNameList = new HashMap<String, UUID>();
+        MAX_GROUP_NUM = num;
+    }
+
+    public boolean CreateGroup(UUID GroupUUID, String Name, UUID PlayerUUID){
+        if(m_GroupNameList.containsKey(Name)){
+            return false; // Conflict
+        } else{
+            List<UUID> m_MemberList = new ArrayList<>();
+            m_MemberList.add(PlayerUUID);
+
+            m_GroupArray.put(GroupUUID, new Group(Name, m_MemberList));
+            m_GroupNameList.put(Name, GroupUUID);
+            return true;
+        }
+    }
+
+    public boolean PutGroup(UUID GroupUUID, String Name,List<UUID> PlayerUUID){
+        List<UUID> m_MemberList = new ArrayList<>();
+
+        Iterator <UUID> it = PlayerUUID.iterator();
+
+        while(it.hasNext()){
+            m_MemberList.add(it.next());
+        }
+
+        m_GroupArray.put(GroupUUID, new Group(Name, m_MemberList));
+        m_GroupNameList.put(Name,GroupUUID);
+        return true;
+    }
+
+    public boolean CheckGroup(String GroupType, String Name){
+        return m_GroupArray.containsKey(m_GroupNameList.get(Name));
+    }
+    public static <K, V> K getKey(Map<K, V> map, V value) {
+
+        for (K key : map.keySet()) {
+            if (value.equals(map.get(key))) {
+                return key;
+            }
+        }
+        return null;
+    }
+
+    public UUID GetUUID(String name){
+        return m_GroupNameList.get(name);
+    }
+
+    public boolean DeleteGroup(UUID GroupUUID, String GroupType){
+        if(m_GroupArray.containsKey(GroupUUID)){
+            for(UUID key: GetGroupMembersUUID(GroupUUID)){
+                m_UserInfoArray.setUserGroupUUID(GroupType,key,new UUID(0,0));
+            }
+
+            m_GroupNameList.remove(GetGroupName(GroupUUID));
+            m_GroupArray.remove(GroupUUID);
+            return true;
+        }
+        else{
+            return false; // Group is not exists.
+        }
+
+    }
+
+    public String SignUpGroup(String GroupType, UUID GroupUUID, UUID PlayerUUID){
+        if(m_GroupArray.containsKey(GroupUUID) && m_UserInfoArray.getUserGroupUUID(PlayerUUID, GroupType).equals(ZERO_UUID)){
+            Group m_Group = m_GroupArray.get(GroupUUID);
+            m_Group.SignUp(PlayerUUID);
+            m_UserInfoArray.setUserGroupUUID(GroupType,PlayerUUID,GroupUUID);
+            return "";
+        } else{
+            return "다른 그룹에 가입되어있습니다."; // Wrong Group
+        }
+    }
+
+    public boolean ExpulsionGroupPlayer(String GroupType, UUID GroupUUID, UUID PlayerUUID){
+        if(m_GroupArray.get(GroupUUID).isMember(PlayerUUID)) {
+            Group m_Group = m_GroupArray.get(GroupUUID);
+            m_Group.Expulsion(PlayerUUID);
+            m_UserInfoArray.setUserGroupUUID(GroupType,PlayerUUID,ZERO_UUID);
+            int temp = m_GroupArray.get(GroupUUID).getMemNUM();
+
+            if(temp==0){
+                m_GroupNameList.remove(m_Group.getGroupName());
+                m_GroupArray.remove(GroupUUID);
+                m_DeleteQueue.add(GroupUUID);
+                Bukkit.getPlayer(PlayerUUID).sendMessage(""+temp+" "+m_DeleteQueue);
+            }
+            return true;
+        } else{
+            return false; // Wrong Player Name. FIXME{Need Checking function for a validate user name's }
+            /* Player op = Bukkit.getPlayer(args[1]);
+                            if (op != null) {
+            */
+        }
+    }
+
+    public List<String> GetGroupMembersName(UUID GroupUUID){
+        List<String> MembersName = new ArrayList<>();
+        for (UUID key : m_GroupArray.get(GroupUUID).getGroupMembers()){
+            try {
+                MembersName.add(Bukkit.getPlayer(key).getDisplayName());
+            }
+            catch(NullPointerException e){
+
+            }
+        }
+        return MembersName;
+    }
+    public List<UUID> GetGroupMembersUUID(UUID GroupUUID){
+        return m_GroupArray.get(GroupUUID).getGroupMembers();
+    }
+    public boolean isGroupMember(UUID GroupUUID, UUID PlayerUUID){
+        Group m_Group = m_GroupArray.get(GroupUUID);
+        return m_Group.isMember(PlayerUUID);
+    }
+    public int GetGroupMemNUM(UUID GroupUUID){
+        Group m_Group = m_GroupArray.get(GroupUUID);
+        return m_Group.getMemNUM();
+    }
+    public Set<String> GetGroupNameList(){
+        return m_GroupNameList.keySet();
+    }
+
+    public Set<UUID> getKeySet(){ // 유저 목록 return
+        return m_GroupArray.keySet();
+    }
+
+    public Set<String> getNameSet() { return m_GroupNameList.keySet(); }
+    public String GetGroupName(UUID GroupUUID){
+        Group m_Group = m_GroupArray.get(GroupUUID);
+        return m_Group.getGroupName();
+    }
+    public int GetGroupMemMaxNum(UUID GroupUUID){
+        Group m_Group = m_GroupArray.get(GroupUUID);
+        return m_Group.getMemMaxNUM();
+    }
+    public boolean isOffline(UUID uuid){
+        return Bukkit.getPlayer(uuid).equals(null) && !Bukkit.getOfflinePlayer(uuid).equals(null);
+    }
+
+    public boolean isOwner(UUID GroupUUID, UUID PlayerUUID){
+        return m_GroupArray.get(GroupUUID).isOwner(PlayerUUID);
+    }
+    private boolean isAvaliableGroup(UUID GroupUUID){
+        return m_GroupArray.containsKey(GroupUUID);
+    }
+
+}

Array/GroupEventHandler.java

@@ -0,0 +1,268 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class GroupEventHandler implements CommandExecutor {
+
+    GroupArray m_GroupArray;
+    UserInfoArray m_UserInfoArray;
+    AccountArray m_AccountArray;
+    UUID ZERO_UUID = new UUID(0,0);
+
+    String m_GroupType;
+    String m_Type;
+    public GroupEventHandler(GroupArray GA, UserInfoArray UIA, AccountArray AA, String GroupType, String Type){
+        m_GroupArray = GA;
+        m_UserInfoArray = UIA;
+        m_GroupType = GroupType;
+        m_Type=Type;
+        m_AccountArray = AA;
+    }
+    public static boolean isStringDouble(String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        Player p = (Player) sender;
+
+        if (args.length != 0) {
+            switch (args[0]) {
+                case "생성":{
+                    UUID tempUUID = UUID.randomUUID();
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type).equals(ZERO_UUID)){
+                        if(m_GroupArray.CreateGroup(tempUUID, args[1], p.getUniqueId())){
+                            m_UserInfoArray.setUserGroupUUID(m_Type,p.getUniqueId(), tempUUID);
+                            m_AccountArray.putAccountInfo(tempUUID,0);
+                            p.sendMessage(args[1]+m_GroupType+"이 생성되었습니다.");
+                            p.sendMessage(m_GroupType+" 멤버 목록: ");
+                            for (String Name: m_GroupArray.GetGroupMembersName(tempUUID)){
+                                p.sendMessage(Name);
+                            }
+                            p.sendMessage(m_GroupType+" 목록:");
+                            for (String Name: m_GroupArray.GetGroupNameList()){
+                                p.sendMessage(Name);
+                            }
+                        }
+                        else{
+                            p.sendMessage("이미 존재하는 "+m_GroupType+" 이름입니다.");
+                        }
+                    }
+                    else{
+                        p.sendMessage("이미"+m_GroupType+"을(를) 소유중입니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type));
+                    }
+                    break;
+                }
+                case "가입":{
+                    p.sendMessage("플레이어 UUID:"+p.getUniqueId()+"  농장 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type));
+                    p.sendMessage("ZERO UUID:"+ZERO_UUID);
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type).equals(ZERO_UUID)){
+                        p.sendMessage("이미 가입한 "+m_GroupType+"이(가) 존재합니다.");
+                    }
+                    else{
+                        p.sendMessage("가입 완료");
+                        m_GroupArray.SignUpGroup(m_Type,m_GroupArray.m_GroupNameList.get(args[1]),p.getUniqueId());
+                        p.sendMessage(m_GroupType+" 멤버 목록: ");
+                        for (String Name: m_GroupArray.GetGroupMembersName(m_GroupArray.m_GroupNameList.get(args[1]))){
+                            p.sendMessage(Name);
+                        }
+                        p.sendMessage(m_GroupType+" 목록:");
+                        for (String Name: m_GroupArray.GetGroupNameList()){
+                            p.sendMessage(Name);
+                        }
+                    }
+                    break;
+                }
+                case "초대":{
+                    p.sendMessage("초대 테스트");
+                    break;
+                }
+                case "강퇴":{
+                    p.sendMessage("강퇴 테스트");
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type).equals(ZERO_UUID)){
+                        p.sendMessage("가입한 "+m_GroupType+"이(가) 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type));
+                    }
+                    else{
+                        if(m_GroupArray.isOwner(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type), p.getUniqueId())){
+                            if (args.length > 1) {
+                                Player op = Bukkit.getPlayer(args[1]);
+                                if (op != null) {
+                                    if(m_GroupArray.isGroupMember(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type),op.getUniqueId())) {
+                                        m_GroupArray.ExpulsionGroupPlayer(m_Type, m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type), p.getUniqueId());
+                                    }
+                                    else{
+                                        p.sendMessage(m_GroupType+"에 가입되지 않은 유저입니다");
+                                    }
+                                }
+                                else{
+                                    p.sendMessage("잘못된 대상입니다.");
+                                }
+                            }
+                            else{
+                                p.sendMessage("강퇴할 대상을 지정");
+                            }
+                        }
+                        else{
+                            p.sendMessage(m_GroupType+"주만 사용 가능한 명령어입니다."+ p.getUniqueId());
+                        }
+                    }
+                    break;
+                }
+                case "탈퇴": {
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type).equals(ZERO_UUID)){
+                        p.sendMessage("가입한 "+m_GroupType+"이(가) 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type));
+                    }
+                    else{
+                        p.sendMessage("탈퇴 플레이어 UUID:"+p.getUniqueId()+m_GroupType+" UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), m_Type));
+                        m_GroupArray.ExpulsionGroupPlayer(m_Type,m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),m_Type),p.getUniqueId());
+
+                    }
+                    break;
+                }
+                case "이름":{
+                    p.sendMessage("현재 "+m_GroupType+" 이름"+m_GroupArray.GetGroupName(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Party")));
+                    break;
+                }
+                case "정보": {
+                    for (String Name: m_GroupArray.GetGroupNameList()){
+                        p.sendMessage(m_GroupType+" 이름:");
+                        p.sendMessage(Name);
+                        p.sendMessage("인원 목록");
+                        for (String Name2: m_GroupArray.GetGroupMembersName(m_GroupArray.m_GroupNameList.get(Name))) {
+                            p.sendMessage(Name2);
+                        }
+                        p.sendMessage("계좌 잔액:"+m_AccountArray.getAccountInfo(m_GroupArray.m_GroupNameList.get(Name)));
+                    }
+                }
+                case "계좌설정":{
+                    if (p.isOp()) {
+                        if (args.length > 1) {
+                            if (args[1] != null) {
+                                UUID op = m_GroupArray.m_GroupNameList.get(args[1]);
+                                if (op != null) {
+                                    if (args.length > 2) {
+                                        if (isStringDouble(args[2])) {
+                                            if(m_AccountArray.setAccountInfo(op, Long.parseLong(args[2]))){
+                                                p.sendMessage(args[1] + "님의 잔액을 " + Integer.parseInt(args[2]) + "원으로 설정하였습니다.");
+                                            } else{
+                                                p.sendMessage("최대 금액 이상으로 설정할 수 없습니다.");
+                                            }
+                                        } else {
+                                            p.sendMessage("설정 금액은 숫자만 가능합니다.");
+                                        }
+                                    } else {
+                                        p.sendMessage("설정 금액을 입력해주세요.");
+                                    }
+                                } else {
+                                    p.sendMessage("잘못된 계좌입니다.");
+                                }
+                            }
+                        }else{
+                            p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        }
+                    } else {
+                        p.sendMessage("관리자만 실행 가능한 명령어입니다.");
+                    }
+                    break;
+                }
+                case "입금": {
+                    if (args.length > 1) {
+                        if(args.length > 2) {
+                            UUID op = m_GroupArray.m_GroupNameList.get(args[1]);
+                            if (op != null) {
+                                if (isStringDouble(args[2])) {
+                                    if(p.getUniqueId() != op) {
+                                        switch(m_AccountArray.transfer(p.getUniqueId(), op, Long.parseLong(args[2])))
+                                        {
+                                            case 1: {
+                                                p.sendMessage(args[1] + m_GroupType+"에 " + Integer.parseInt(args[2]) + "원을 이체하였습니다.");
+                                                break;
+                                            }
+                                            case 2: {
+                                                p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                                                break;
+                                            }
+                                            case 3:{
+                                                p.sendMessage("잔액이 부족합니다.");
+                                                break;
+                                            }
+                                        }
+                                    } else{
+                                        p.sendMessage("자기 자신에게는 이체할 수 없습니다.");
+                                    }
+                                } else {
+                                    p.sendMessage("이체 금액은 숫자만 가능합니다.");
+                                }
+                            } else {
+                                p.sendMessage("잘못된 계좌입니다.");
+                            }
+                        } else {
+                            p.sendMessage("이체 금액을 입력해주세요.");
+                        }
+                    } else {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                    }
+                    break;
+                }
+                case "출금": {
+                    if (args.length > 1) {
+                        if(args.length > 2) {
+                            UUID op = m_GroupArray.m_GroupNameList.get(args[1]);
+                            if (op != null) {
+                                if (isStringDouble(args[2])) {
+                                    if(p.getUniqueId() != op) {
+                                        switch(m_AccountArray.transfer(op,p.getUniqueId(), Long.parseLong(args[2])))
+                                        {
+                                            case 1: {
+                                                p.sendMessage(args[1] + m_GroupType+"에서 " + Integer.parseInt(args[2]) + "원을 출금하였습니다.");
+                                                break;
+                                            }
+                                            case 2: {
+                                                p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                                                break;
+                                            }
+                                            case 3:{
+                                                p.sendMessage("잔액이 부족합니다.");
+                                                break;
+                                            }
+                                        }
+                                    } else{
+                                        p.sendMessage("자기 자신에게는 이체할 수 없습니다.");
+                                    }
+                                } else {
+                                    p.sendMessage("이체 금액은 숫자만 가능합니다.");
+                                }
+                            } else {
+                                p.sendMessage("잘못된 계좌입니다.");
+                            }
+                        } else {
+                            p.sendMessage("이체 금액을 입력해주세요.");
+                        }
+                    } else {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                    }
+                    break;
+                }
+                case "잔액": {
+                    p.sendMessage("==잔액: " + m_AccountArray.getAccountInfo(m_GroupArray.GetUUID(args[1]))+ "원==");
+                    break;
+                }
+                default: {
+                    p.sendMessage("잘못된 명령어");
+                }
+            }
+        }
+        return true;
+    }
+}

Array/Nation.java

@@ -0,0 +1,11 @@
+package org.poopki.duckdns.user_db.Array;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class Nation extends Group{
+    public Nation(String Name, List<UUID> uuid_list){
+        super(Name, uuid_list);
+    }
+}

Array/NationArray.java

@@ -0,0 +1,9 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+public class NationArray extends GroupArray{
+    public NationArray(UserInfoArray m_UIA){
+        super(m_UIA, 50);
+    }
+}

Array/NationEventHandler.java

@@ -0,0 +1,290 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class NationEventHandler implements CommandExecutor {
+
+    NationArray m_NationArray;
+    UserInfoArray m_UserInfoArray;
+    AccountArray m_AccountArray;
+    UUID ZERO_UUID = new UUID(0,0);
+    public NationEventHandler(UserInfoArray UIA,  NationArray GA, AccountArray AA){
+        m_NationArray = GA;
+        m_UserInfoArray = UIA;
+        m_AccountArray = AA;
+    }
+    public static boolean isStringDouble(String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        Player p = (Player) sender;
+
+        if (args.length != 0) {
+            switch (args[0]) {
+                case "생성":{
+                    UUID tempUUID = UUID.randomUUID();
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation").equals(ZERO_UUID)){
+                        p.sendMessage("이미 국가을 소유중"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"));
+                        return false;
+                    }
+
+                    if(!m_NationArray.CreateGroup(tempUUID, args[1], p.getUniqueId())){
+                        p.sendMessage("이미 존재하는 국가 이름");
+                        return false;
+                    }
+
+                    m_UserInfoArray.setUserGroupUUID("Nation",p.getUniqueId(), tempUUID);
+                    m_AccountArray.putAccountInfo(tempUUID,0);
+
+                    for (UUID key: m_UserInfoArray.getKeySet()){
+                        p.sendMessage("------------"+p.getUniqueId());
+                        p.sendMessage(""+m_UserInfoArray.getUserGroupUUID(key,"Nation"));
+                    }
+
+                    p.sendMessage(args[1]+"국가이 생성되었습니다.");
+                    p.sendMessage("국가 멤버 목록: ");
+
+                    for (String Name: m_NationArray.GetGroupMembersName(tempUUID)){
+                        p.sendMessage(Name);
+                    }
+
+                    p.sendMessage("국가 목록:");
+
+                    for (String Name: m_NationArray.GetGroupNameList()){
+                        p.sendMessage(Name);
+                    }
+                    break;
+                }
+
+                case "가입":{
+                    p.sendMessage("플레이어 UUID:"+p.getUniqueId()+"  국가 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"));
+                    p.sendMessage("ZERO UUID:"+ZERO_UUID);
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation").equals(ZERO_UUID)){
+                        p.sendMessage("이미 가입한 국가가 존재");
+                        return false;
+                    }
+                    else{
+                        p.sendMessage("가입 완료");
+                        m_NationArray.SignUpGroup("Nation",m_NationArray.m_GroupNameList.get(args[1]),p.getUniqueId());
+                        p.sendMessage("국가 멤버 목록: ");
+                        for (String Name: m_NationArray.GetGroupMembersName(m_NationArray.m_GroupNameList.get(args[1]))){
+                            p.sendMessage(Name);
+                        }
+                        p.sendMessage("국가 목록:");
+                        for (String Name: m_NationArray.GetGroupNameList()){
+                            p.sendMessage(Name);
+                        }
+                    }
+                    break;
+                }
+
+                case "초대":{
+                    p.sendMessage("초대 테스트");
+                    break;
+                }
+
+                case "강퇴":{
+                    p.sendMessage("강퇴 테스트"+args[1]);
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation").equals(ZERO_UUID)){
+                        p.sendMessage("가입한 국가이 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"));
+                        return false;
+                    }
+
+                    if(!m_NationArray.isOwner(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"), p.getUniqueId())){
+                        p.sendMessage("국가 대표만 사용 가능한 명령어"+ p.getUniqueId());
+                    }
+
+                    if (args.length < 1) {
+                        p.sendMessage("강퇴할 대상을 지정");
+                        return false;
+                    }
+
+                    UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 대상");
+                        return false;
+                    }
+
+                    if(!m_NationArray.isGroupMember(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"),op)) {
+                        p.sendMessage("국가에 가입되지 않은 유저");
+                        return false;
+                    }
+
+                    m_NationArray.ExpulsionGroupPlayer("Nation", m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"), op);
+                    break;
+                }
+                case "탈퇴": {
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation").equals(ZERO_UUID)){
+                        p.sendMessage("가입한 국가이 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"));
+                        return false;
+                    }
+                    else{
+                        p.sendMessage("탈퇴 플레이어 UUID:"+p.getUniqueId()+"  국가 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Nation"));
+                        m_NationArray.ExpulsionGroupPlayer("Nation",m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Nation"),p.getUniqueId());
+
+                    }
+                    break;
+                }
+                case "이름":{
+                    p.sendMessage("현재 파티 이름"+m_NationArray.GetGroupName(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Nation")));
+                    break;
+                }
+                case "정보": {
+                    for (String Name: m_NationArray.GetGroupNameList()){
+                        p.sendMessage("국가 이름:");
+                        p.sendMessage(Name);
+                        p.sendMessage("인원 목록");
+                        for (String Name2: m_NationArray.GetGroupMembersName(m_NationArray.m_GroupNameList.get(Name))) {
+                            p.sendMessage(Name2);
+                        }
+                        p.sendMessage("계좌 잔액:"+m_AccountArray.getAccountInfo(m_NationArray.m_GroupNameList.get(Name)));
+                    }
+                    break;
+                }
+                case "계좌설정":{
+                    if (!p.isOp()) {
+                        p.sendMessage("관리자만 실행 가능한 명령어입니다.");
+                        return false;
+                    }
+                    if (args.length < 1) {
+                        p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_NationArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("설정 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("설정 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(m_AccountArray.getAccountInfo(op)+Long.parseLong(args[2])>2147483647){
+                        p.sendMessage("최대 금액 이상으로 설정할 수 없습니다.");
+                        return false;
+                    }
+                    m_AccountArray.setAccountInfo(op, Long.parseLong(args[2]));
+                    p.sendMessage(args[1] + "님의 잔액을 " + Integer.parseInt(args[2]) + "원으로 설정하였습니다.");
+                    break;
+                }
+
+                case "입금": {
+                    if (args.length < 1) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_NationArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("이체 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("이체 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 이체할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(p.getUniqueId(), op, Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "국가에 " + Integer.parseInt(args[2]) + "원을 이체하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+
+                case "출금": {
+                    if (args.length < 1) {
+                        p.sendMessage("출금 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("출금 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_NationArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("출금 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("출금 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 출금할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(op, p.getUniqueId(), Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "국가에 " + Integer.parseInt(args[2]) + "원을 출금하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+                case "잔액": {
+                    p.sendMessage("==잔액: " + m_AccountArray.getAccountInfo(m_NationArray.GetUUID(args[1]))+ "원==");
+                    break;
+                }
+                default: {
+                    p.sendMessage("잘못된 명령어");
+                }
+            }
+        }
+        return true;
+    }
+}

Array/Squad.java

@@ -0,0 +1,10 @@
+package org.poopki.duckdns.user_db.Array;
+
+import java.util.List;
+import java.util.UUID;
+
+public class Squad extends Group{
+    public Squad(String Name, List<UUID> uuid_list){
+        super(Name, uuid_list);
+    }
+}

Array/SquadArray.java

@@ -0,0 +1,9 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+public class SquadArray extends GroupArray{
+    public SquadArray(UserInfoArray m_UIA){
+        super(m_UIA, 8);
+    }
+}

Array/SquadEventHandler.java

@@ -0,0 +1,292 @@
+package org.poopki.duckdns.user_db.Array;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class SquadEventHandler implements CommandExecutor {
+
+    SquadArray m_SquadArray;
+    UserInfoArray m_UserInfoArray;
+    AccountArray m_AccountArray;
+    UUID ZERO_UUID = new UUID(0,0);
+    public SquadEventHandler(UserInfoArray UIA, SquadArray GA, AccountArray AA){
+        m_SquadArray = GA;
+        m_UserInfoArray = UIA;
+        m_AccountArray = AA;
+    }
+    public static boolean isStringDouble(String s) {
+        try {
+            Double.parseDouble(s);
+            return true;
+        } catch (NumberFormatException e) {
+            return false;
+        }
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        Player p = (Player) sender;
+
+        if (args.length != 0) {
+            switch (args[0]) {
+                case "생성":{
+                    UUID tempUUID = UUID.randomUUID();
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad").equals(ZERO_UUID)){
+                        p.sendMessage("이미 분대를 소유중"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"));
+                        return false;
+                    }
+
+                    if(!m_SquadArray.CreateGroup(tempUUID, args[1], p.getUniqueId())){
+                        p.sendMessage("이미 존재하는 분대 이름");
+                        return false;
+                    }
+
+                    m_UserInfoArray.setUserGroupUUID("Squad",p.getUniqueId(), tempUUID);
+                    m_AccountArray.putAccountInfo(tempUUID,0);
+
+                    for (UUID key: m_UserInfoArray.getKeySet()){
+                        p.sendMessage("------------"+p.getUniqueId());
+                        p.sendMessage(""+m_UserInfoArray.getUserGroupUUID(key,"Squad"));
+                    }
+
+                    p.sendMessage(args[1]+"분대이 생성되었습니다.");
+                    p.sendMessage("분대 멤버 목록: ");
+
+                    for (String Name: m_SquadArray.GetGroupMembersName(tempUUID)){
+                        p.sendMessage(Name);
+                    }
+
+                    p.sendMessage("분대 목록:");
+
+                    for (String Name: m_SquadArray.GetGroupNameList()){
+                        p.sendMessage(Name);
+                    }
+                    break;
+                }
+
+                case "가입":{
+                    p.sendMessage("플레이어 UUID:"+p.getUniqueId()+"  분대 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"));
+                    p.sendMessage("ZERO UUID:"+ZERO_UUID);
+                    if(!m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad").equals(ZERO_UUID)){
+                        p.sendMessage("이미 가입한 분대가 존재");
+                        return false;
+                    }
+                    else{
+                        p.sendMessage("가입 완료");
+                        m_SquadArray.SignUpGroup("Squad",m_SquadArray.m_GroupNameList.get(args[1]),p.getUniqueId());
+                        p.sendMessage("분대 멤버 목록: ");
+                        for (String Name: m_SquadArray.GetGroupMembersName(m_SquadArray.m_GroupNameList.get(args[1]))){
+                            p.sendMessage(Name);
+                        }
+                        p.sendMessage("분대 목록:");
+                        for (String Name: m_SquadArray.GetGroupNameList()){
+                            p.sendMessage(Name);
+                        }
+                    }
+                    break;
+                }
+
+                case "초대":{
+                    p.sendMessage("초대 테스트");
+                    break;
+                }
+
+                case "강퇴":{
+                    p.sendMessage("강퇴 테스트"+args[1]);
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad").equals(ZERO_UUID)){
+                        p.sendMessage("가입한 분대이 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"));
+                        return false;
+                    }
+
+                    if(!m_SquadArray.isOwner(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"), p.getUniqueId())){
+                        p.sendMessage("분대장만 사용 가능한 명령어"+ p.getUniqueId());
+                    }
+
+                    if (args.length < 1) {
+                        p.sendMessage("강퇴할 대상을 지정");
+                        return false;
+                    }
+
+                    UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 대상");
+                        return false;
+                    }
+
+                    if(!m_SquadArray.isGroupMember(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"),op)) {
+                        p.sendMessage("분대에 가입되지 않은 유저");
+                        return false;
+                    }
+
+                    m_SquadArray.ExpulsionGroupPlayer("Squad", m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"), op);
+                    break;
+                }
+                case "탈퇴": {
+                    if(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad").equals(ZERO_UUID)){
+                        p.sendMessage("가입한 분대이 없습니다."+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"));
+                        return false;
+                    }
+                    else{
+                        p.sendMessage("탈퇴 플레이어 UUID:"+p.getUniqueId()+"  분대 UUID:"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(), "Squad"));
+                        m_SquadArray.ExpulsionGroupPlayer("Squad",m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Squad"),p.getUniqueId());
+
+                    }
+                    break;
+                }
+                case "이름":{
+                    //p.sendMessage("현재 파티 이름"+m_SquadArray.GetGroupName(m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Squad")));
+                    p.sendMessage("현재 파티 이름"+m_UserInfoArray.getUserGroupUUID(p.getUniqueId(),"Squad"));
+                    p.sendMessage(""+m_SquadArray.getKeySet());
+                    break;
+                }
+                case "정보": {
+                    p.sendMessage("분대 이름:");
+                    for (String Name: m_SquadArray.GetGroupNameList()){
+                        p.sendMessage("분대 이름:");
+                        p.sendMessage(Name);
+                        p.sendMessage("인원 목록");
+                        for (String Name2: m_SquadArray.GetGroupMembersName(m_SquadArray.m_GroupNameList.get(Name))) {
+                            p.sendMessage(Name2);
+                        }
+                        p.sendMessage("계좌 잔액:"+m_AccountArray.getAccountInfo(m_SquadArray.m_GroupNameList.get(Name)));
+                    }
+                    break;
+                }
+                case "계좌설정":{
+                    if (!p.isOp()) {
+                        p.sendMessage("관리자만 실행 가능한 명령어입니다.");
+                        return false;
+                    }
+                    if (args.length < 1) {
+                        p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("설정 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_SquadArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("설정 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("설정 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(m_AccountArray.getAccountInfo(op)+Long.parseLong(args[2])>2147483647){
+                        p.sendMessage("최대 금액 이상으로 설정할 수 없습니다.");
+                        return false;
+                    }
+                    m_AccountArray.setAccountInfo(op, Long.parseLong(args[2]));
+                    p.sendMessage(args[1] + "님의 잔액을 " + Integer.parseInt(args[2]) + "원으로 설정하였습니다.");
+                    break;
+                }
+
+                case "입금": {
+                    if (args.length < 1) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("이체 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_SquadArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("이체 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("이체 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 이체할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(p.getUniqueId(), op, Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "분대에 " + Integer.parseInt(args[2]) + "원을 이체하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+
+                case "출금": {
+                    if (args.length < 1) {
+                        p.sendMessage("출금 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    if (args[1] == null) {
+                        p.sendMessage("출금 대상이 지정되지 않았습니다.");
+                        return false;
+                    }
+                    UUID op = m_SquadArray.m_GroupNameList.get(args[1]);
+                    if (op == null) {
+                        p.sendMessage("잘못된 계좌입니다.");
+                        return false;
+                    }
+                    if (args.length < 2) {
+                        p.sendMessage("출금 금액을 입력해주세요.");
+                        return false;
+                    }
+                    if (!isStringDouble(args[2])) {
+                        p.sendMessage("출금 금액은 숫자만 가능합니다.");
+                        return false;
+                    }
+                    if(p.getUniqueId() == op) {
+                        p.sendMessage("자기 자신에게는 출금할 수 없습니다.");
+                        return false;
+                    }
+                    switch(m_AccountArray.transfer(op, p.getUniqueId(), Long.parseLong(args[2])))
+                    {
+                        case 1: {
+                            p.sendMessage(args[1] + "분대에 " + Integer.parseInt(args[2]) + "원을 출금하였습니다.");
+                            break;
+                        }
+                        case 2: {
+                            p.sendMessage("잔액은 최대 금액을 초과할 수 없습니다.");
+                            break;
+                        }
+                        case 3:{
+                            p.sendMessage("잔액이 부족합니다.");
+                            break;
+                        }
+                    }
+                    break;
+                }
+                case "잔액": {
+                    p.sendMessage("==잔액: " + m_AccountArray.getAccountInfo(m_SquadArray.GetUUID(args[1]))+ "원==");
+                    break;
+                }
+                default: {
+                    p.sendMessage("잘못된 명령어");
+                }
+            }
+        }
+        return true;
+    }
+}

CustomItem_test.java

@@ -0,0 +1,40 @@
+package org.poopki.duckdns.user_db;
+
+import org.bukkit.Material;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.bukkit.entity.Arrow;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.metadata.FixedMetadataValue;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.util.Vector;
+
+import java.util.Random;
+
+public class CustomItem_test implements CommandExecutor { //명령어 처리 클래스는 CommandExecutor 인터페이스를 상속해야 한다.
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) { //명령어 실행 시
+        if(sender instanceof Player) {  //명령어 사용자가 플레이어인 경우
+            Player player = (Player)sender; //명령어 사용자 객체를 플레이어 객체로 변환할 수 있음
+            player.sendMessage("zl존 개쩌는 테스트 명령어를 실행하셨습니다.");    //사용자에게 메시지 발신
+            ItemStack irons = new ItemStack(Material.IRON_INGOT);   //아이템을 ItemStack 객체를 생성해 만들 수 있음
+            ItemStack golds = new ItemStack(Material.GOLD_INGOT);
+            ItemStack diamonds = new ItemStack(Material.DIAMOND);
+
+            irons.setAmount(10);    //아이템 갯수를 정할 수 있음
+            golds.setAmount(20);
+            diamonds.setAmount(30);
+
+            player.getInventory().addItem(irons, golds, diamonds);  //플레이어의 인벤토리를 가져와 아이템을 집어넣음
+            return true;    //true값을 반환하면 명령어가 성공한 것으로 간주
+        }
+        else if(sender instanceof ConsoleCommandSender) {   //명령어 사용자가 콘솔인 경우
+            sender.sendMessage("콘솔에서는 이 명령어를 실행할 수 없습니다.");
+            return false;   //false값을 반환하면 명령어가 실패한 것으로 간주
+        }
+        return false;
+    }
+}

DB/DBUpdate.java

@@ -1,25 +1,37 @@
 package org.poopki.duckdns.user_db.DB;
 
-import org.poopki.duckdns.user_db.AccountArray;
-import org.poopki.duckdns.user_db.UserInfoArray;
+import org.poopki.duckdns.user_db.*;
+import org.poopki.duckdns.user_db.Array.AccountArray;
+import org.poopki.duckdns.user_db.Array.FarmArray;
+import org.poopki.duckdns.user_db.Array.NationArray;
+import org.poopki.duckdns.user_db.Array.SquadArray;
 
 import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.UUID;
 
 public class DBUpdate {
-    private static final String DB_DRIVER_CLASS = "org.mariadb.jdbc.Driver";
-    private static final String DB_URL = "jdbc:mariadb://poopki.duckdns.org:3307/mc_dev";
-    private static final String DB_USERNAME = "mc_dev";
-    private static final String DB_PASSWORD = "!Rkdalsrn1027";
-    private static UserInfoArray m_InfoArrayInstance;
-    private static AccountArray m_AccountArray;
-
-    public DBUpdate(UserInfoArray UIA, AccountArray AA){ 
+    private  final String DB_DRIVER_CLASS = "org.mariadb.jdbc.Driver";
+    private   final String DB_URL = "jdbc:mariadb://poopki.duckdns.org:3307/mc_dev";
+    private   final String DB_USERNAME = "mc_dev";
+    private   final String DB_PASSWORD = "!Rkdalsrn1027";
+    private  UserInfoArray m_InfoArrayInstance;
+    private  AccountArray m_AccountArray;
+    private SquadArray m_SquadArray;
+    private  FarmArray m_FarmArray;
+    private  NationArray m_NationArray;
+    UUID ZERO_UUID = new UUID(0,0);
+    static int MAX_FARM_NUM = 13;
+    public DBUpdate(UserInfoArray UIA, FarmArray FA, NationArray NA, SquadArray SA ,AccountArray AA){
         m_InfoArrayInstance = UIA;
         m_AccountArray = AA;
+        m_FarmArray = FA;
+        m_NationArray = NA;
+        m_SquadArray = SA;
     }
 
-    public static void InitDB() throws SQLException { // 플러그인 초기 사용 시 테이블 생성
+    public void InitDB() throws SQLException { // 플러그인 초기 사용 시 테이블 생성
         Connection conn = null;
         Statement stmt;
 
@@ -33,9 +45,9 @@ public class DBUpdate {
             String sql = sb.append("create table if not exists UserInfo(")
                     .append("UUID varchar(36) PRIMARY KEY,")
                     .append("Name varchar(15), ")
-                    .append("Nation int(8),") //public
-                    .append("Squad int(8),")  //public
-                    .append("Farm int(8),") //public
+                    .append("Nation varchar(36),") //public
+                    .append("Squad varchar(36),")  //public
+                    .append("Farm varchar(36),") //public
                     .append("Account int(10)") //public
                     /*
                     .append("Occupation int(8),") //private
@@ -58,7 +70,7 @@ public class DBUpdate {
             }
         }
     }
-    public static void LoadDB() throws SQLException { //서버 초기 구동 시 DB 로드
+    public void LoadDB() throws SQLException { //서버 초기 구동 시 DB 로드
         Connection conn = null;
         Statement stmt;
         try {
@@ -73,9 +85,10 @@ public class DBUpdate {
             while(rs.next()){
                 m_InfoArrayInstance.putUserInfo(UUID.fromString(rs.getString(1)),
                                                     rs.getString(2),
-                                                    Integer.parseInt(rs.getString(3)),
-                                                    Integer.parseInt(rs.getString(4)),
-                                                    Integer.parseInt(rs.getString(5)));
+                        UUID.fromString(rs.getString(3)),
+                        UUID.fromString(rs.getString(4)),
+                        UUID.fromString(rs.getString(5)),
+                        new UUID(0,0));
                 m_AccountArray.putAccountInfo(UUID.fromString(rs.getString(1)),Integer.parseInt(rs.getString(6)));
             }
 
@@ -91,13 +104,124 @@ public class DBUpdate {
                 conn.close();
             }
         }
+
+
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            System.out.println("Connection success");
+            stmt = conn.createStatement();
+            String sql =  "SELECT * FROM Farm";
+            ResultSet rs = stmt.executeQuery(sql);
+
+            while(rs.next()){
+                List<UUID> m_MemberList = new ArrayList<>();
+
+                for(int index = 4; index<MAX_FARM_NUM; index++){
+                    if(rs.getString(index) != null){
+                        m_MemberList.add(index-4,UUID.fromString(rs.getString(index)));
+                    }
+                }
+                m_FarmArray.PutGroup(UUID.fromString(rs.getString(1)),
+                        rs.getString(2),
+                        m_MemberList);
+                m_AccountArray.putAccountInfo(UUID.fromString(rs.getString(1)),Integer.parseInt(rs.getString(3)));
+            }
+
+        }  catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        catch (SQLException e) {
+            // TODO Auto-generated catch block
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }finally{
+            if(conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+
+
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            System.out.println("Connection success");
+            stmt = conn.createStatement();
+            String sql =  "SELECT * FROM Nation";
+            ResultSet rs = stmt.executeQuery(sql);
+
+            while(rs.next()){
+                List<UUID> m_MemberList = new ArrayList<>();
+
+                for(int index = 4; index<MAX_FARM_NUM; index++){
+                    if(rs.getString(index) != null){
+                        m_MemberList.add(index-4,UUID.fromString(rs.getString(index)));
+                    }
+                }
+                m_NationArray.PutGroup(UUID.fromString(rs.getString(1)),
+                        rs.getString(2),
+                        m_MemberList);
+                m_AccountArray.putAccountInfo(UUID.fromString(rs.getString(1)),Integer.parseInt(rs.getString(3)));
+            }
+
+        }  catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        catch (SQLException e) {
+            // TODO Auto-generated catch block
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }finally{
+            if(conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+
+
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            System.out.println("Connection success");
+            stmt = conn.createStatement();
+            String sql =  "SELECT * FROM Squad";
+            ResultSet rs = stmt.executeQuery(sql);
+
+            while(rs.next()){
+                List<UUID> m_MemberList = new ArrayList<>();
+
+                for(int index = 4; index<11; index++){
+                    if(rs.getString(index) != null){
+                        m_MemberList.add(index-4,UUID.fromString(rs.getString(index)));
+                    }
+                }
+                m_SquadArray.PutGroup(UUID.fromString(rs.getString(1)),
+                        rs.getString(2),
+                        m_MemberList);
+                m_AccountArray.putAccountInfo(UUID.fromString(rs.getString(1)),Integer.parseInt(rs.getString(3)));
+            }
+
+        }  catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        catch (SQLException e) {
+            // TODO Auto-generated catch block
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }finally{
+            if(conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
     }
 
 
     public void UpdateDB() throws SQLException { // 서버 종료시 DB 업데이트
         Connection conn = null;
         PreparedStatement pstmt;
-
+        // Update UserINFO
         try{
             Class.forName("org.mariadb.jdbc.Driver");
             conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
@@ -108,9 +232,9 @@ public class DBUpdate {
                 pstmt = conn.prepareStatement(sql);
                 pstmt.setString(1, String.valueOf(key.toString()));
                 pstmt.setString(2, String.valueOf(m_InfoArrayInstance.getUserName(key)));
-                pstmt.setString(3, String.valueOf(11));
-                pstmt.setString(4, String.valueOf(23));
-                pstmt.setString(5, String.valueOf(56));
+                pstmt.setString(3, String.valueOf(m_InfoArrayInstance.getUserGroupUUID(key, "Nation")));
+                pstmt.setString(4, String.valueOf(m_InfoArrayInstance.getUserGroupUUID(key, "Squad")));
+                pstmt.setString(5, String.valueOf(m_InfoArrayInstance.getUserGroupUUID(key, "Farm")));
                 pstmt.setString(6, String.valueOf(m_AccountArray.getAccountInfo(key)));
                 int cnt = pstmt.executeUpdate();
                 if( cnt == 0 ){
@@ -134,5 +258,213 @@ public class DBUpdate {
                 conn.close();
             }
         }
+
+        // Update Farm Info
+        try{
+            Class.forName("org.mariadb.jdbc.Driver");
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+
+            for (UUID key : m_FarmArray.getKeySet()) {
+
+                String sql = "REPLACE INTO Farm VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                pstmt.setString(2, String.valueOf(m_FarmArray.GetGroupName(key)));
+                pstmt.setString(3, String.valueOf(m_AccountArray.getAccountInfo(key)));
+                int index = 4;
+                for (UUID MemUUID : m_FarmArray.GetGroupMembersUUID(key)){
+                    pstmt.setString(index, String.valueOf(MemUUID.toString()));
+                    index++;
+                }
+                for(; index<=MAX_FARM_NUM;index++){
+                    pstmt.setString(index, null);
+                }
+
+                int cnt = pstmt.executeUpdate();
+                if( cnt == 0 ){
+                    System.out.println("데이터 입력 실패");
+                }
+                else{
+                    System.out.println("데이터 입력 성공");
+                }
+
+            }
+        }
+        catch(ClassNotFoundException e){
+            e.printStackTrace();
+        }
+        catch(SQLException e){
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+        finally {
+            if( conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+
+        try{
+            Class.forName("org.mariadb.jdbc.Driver");
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            for (UUID key: m_FarmArray.m_DeleteQueue){
+                String sql = "DELETE FROM Farm WHERE FARM_UUID=?";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                int cnt = pstmt.executeUpdate();
+                m_FarmArray.m_DeleteQueue.remove(key);
+            }
+        }
+        catch(ClassNotFoundException e){
+            e.printStackTrace();
+        }
+        catch(SQLException e){
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+        finally {
+            if( conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+
+        // Update nation Info
+        try{
+            Class.forName("org.mariadb.jdbc.Driver");
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            for (UUID key: m_NationArray.m_DeleteQueue){
+                String sql = "DELETE FROM Nation WHERE NATION_UUID (?)";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                int cnt = pstmt.executeUpdate();
+                m_NationArray.m_DeleteQueue.remove(key);
+            }
+            for (UUID key : m_NationArray.getKeySet()) {
+
+                String sql = "REPLACE INTO Nation VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                pstmt.setString(2, String.valueOf(m_NationArray.GetGroupName(key)));
+                pstmt.setString(3, String.valueOf(m_AccountArray.getAccountInfo(key)));
+                int index = 4;
+                for (UUID MemUUID : m_NationArray.GetGroupMembersUUID(key)){
+                    pstmt.setString(index, String.valueOf(MemUUID.toString()));
+                    index++;
+                }
+                for(; index<=MAX_FARM_NUM;index++){
+                    pstmt.setString(index, null);
+                }
+
+                int cnt = pstmt.executeUpdate();
+                if( cnt == 0 ){
+                    System.out.println("데이터 입력 실패");
+                }
+                else{
+                    System.out.println("데이터 입력 성공");
+                }
+
+            }
+        }
+        catch(ClassNotFoundException e){
+            e.printStackTrace();
+        }
+        catch(SQLException e){
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+        finally {
+            if( conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+        try{
+            Class.forName("org.mariadb.jdbc.Driver");
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            for (UUID key: m_NationArray.m_DeleteQueue){
+                String sql = "DELETE FROM Nation WHERE NATION_UUID=?";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                int cnt = pstmt.executeUpdate();
+                m_NationArray.m_DeleteQueue.remove(key);
+            }
+        }
+        catch(ClassNotFoundException e){
+            e.printStackTrace();
+        }
+        catch(SQLException e){
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+        finally {
+            if( conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+
+        try{
+            Class.forName("org.mariadb.jdbc.Driver");
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+
+            for (UUID key : m_SquadArray.getKeySet()) {
+
+                String sql = "REPLACE INTO Squad VALUES (?,?,?,?,?,?,?,?,?,?,?)";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                pstmt.setString(2, String.valueOf(m_SquadArray.GetGroupName(key)));
+                pstmt.setString(3, String.valueOf(m_AccountArray.getAccountInfo(key)));
+                int index = 4;
+                for (UUID MemUUID : m_SquadArray.GetGroupMembersUUID(key)){
+                    pstmt.setString(index, String.valueOf(MemUUID.toString()));
+                    index++;
+                }
+                for(; index<=11;index++){
+                    pstmt.setString(index, null);
+                }
+
+                int cnt = pstmt.executeUpdate();
+                if( cnt == 0 ){
+                    System.out.println("데이터 입력 실패");
+                }
+                else{
+                    System.out.println("데이터 입력 성공");
+                }
+
+            }
+        }
+        catch(ClassNotFoundException e){
+            e.printStackTrace();
+        }
+        catch(SQLException e){
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+        finally {
+            if( conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
+
+        try{
+            Class.forName("org.mariadb.jdbc.Driver");
+            conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD);
+            for (UUID key: m_SquadArray.m_DeleteQueue){
+                String sql = "DELETE FROM Squad WHERE FARM_UUID=?";
+                pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, String.valueOf(key.toString()));
+                int cnt = pstmt.executeUpdate();
+                m_SquadArray.m_DeleteQueue.remove(key);
+            }
+        }
+        catch(ClassNotFoundException e){
+            e.printStackTrace();
+        }
+        catch(SQLException e){
+            System.err.println("에러 내용 :" + e.getMessage());
+            System.out.println("DB Connection fail");
+        }
+        finally {
+            if( conn != null && !conn.isClosed()){
+                conn.close();
+            }
+        }
     }
 }

GUI/BaseGUI.java

@@ -0,0 +1,110 @@
+package org.poopki.duckdns.user_db.GUI;
+
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.Material;
+import org.bukkit.entity.Item;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.poopki.duckdns.user_db.Array.AccountArray;
+import org.poopki.duckdns.user_db.Array.FarmArray;
+import org.poopki.duckdns.user_db.Array.NationArray;
+import org.poopki.duckdns.user_db.Array.SquadArray;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class BaseGUI implements Listener{
+    private final Inventory inv;
+    UUID m_uuid;
+    ItemManager m_ItemManager= new ItemManager();
+    AccountArray m_AA;
+    UserInfoArray m_UIA;
+    FarmArray m_FA;
+    NationArray m_NA;
+    SquadArray m_SA;
+    public BaseGUI(AccountArray AA, UserInfoArray UIA, FarmArray FA, NationArray NA, SquadArray SA, UUID uuid, InventoryClickEvent e) {
+        m_uuid=uuid;
+        this.inv = Bukkit.createInventory(null,27,"TESTGUI");
+        m_AA    =   AA;
+        m_UIA   =   UIA;
+        m_FA    =   FA;
+        m_NA    =   NA;
+        m_SA    =   SA;
+        initItemSetting();
+    }
+
+    private void initItemSetting() {
+
+        inv.setItem(0,m_ItemManager.GetBalance(m_AA, m_UIA, m_FA, m_NA,m_SA,m_uuid, "User"));
+        inv.setItem(1,m_ItemManager.GetBalance(m_AA, m_UIA, m_FA, m_NA,m_SA,m_uuid, "Nation"));
+        inv.setItem(2,m_ItemManager.GetBalance(m_AA, m_UIA, m_FA, m_NA,m_SA,m_uuid, "Farm"));
+
+        inv.setItem(9, m_ItemManager.btn1);
+        inv.setItem(18, m_ItemManager.btn2);
+        inv.setItem(10, m_ItemManager.btn3);
+        inv.setItem(19, m_ItemManager.btn4);
+        inv.setItem(11, m_ItemManager.btn5);
+        inv.setItem(20, m_ItemManager.btn6);
+    }
+
+    public void open(Player player){
+        player.openInventory(inv);
+    }
+
+    public void inven(InventoryClickEvent e){
+        Player p = (Player) e.getWhoClicked();
+        Inventory m_inv = e.getClickedInventory();
+
+        if (e.getInventory() != m_inv) return;
+
+        switch(e.getCurrentItem().getType()){
+            case CANDLE:
+                e.setCancelled(true);
+                p.sendMessage("10000원 증가");
+                m_AA.setAccountInfo(p.getUniqueId(), (long)m_AA.getAccountInfo(p.getUniqueId())+10000);
+                initItemSetting();
+                p.openInventory(inv);
+                break;
+            case BEEF:
+                e.setCancelled(true);
+                p.sendMessage("10000원 감소");
+                m_AA.setAccountInfo(p.getUniqueId(), (long)m_AA.getAccountInfo(p.getUniqueId())-10000);
+                initItemSetting();
+                p.openInventory(inv);
+                break;
+            case TORCH:
+                e.setCancelled(true);
+                p.sendMessage("국가 10000원 증가"+ m_AA.getAccountInfo(m_UIA.getUserGroupUUID(m_uuid, "Nation")));
+                m_AA.setAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Nation"), (long)m_AA.getAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Nation"))+10000);
+                initItemSetting();
+                p.openInventory(inv);
+                break;
+            case GRASS:
+                e.setCancelled(true);
+                p.sendMessage("국가 10000원 감소"+ m_AA.getAccountInfo(m_UIA.getUserGroupUUID(m_uuid, "Nation")));
+                m_AA.setAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Nation"), (long)m_AA.getAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Nation"))-10000);
+                initItemSetting();
+                p.openInventory(inv);
+                break;
+            case DIAMOND:
+                e.setCancelled(true);
+                p.sendMessage("농장 10000원 증가"+ m_AA.getAccountInfo(m_UIA.getUserGroupUUID(m_uuid, "Farm")));
+                m_AA.setAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Farm"), (long)m_AA.getAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Farm"))+10000);
+                initItemSetting();
+                p.openInventory(inv);
+                break;
+            case IRON_INGOT:
+                e.setCancelled(true);
+                p.sendMessage("농장 10000원 감소"+ m_AA.getAccountInfo(m_UIA.getUserGroupUUID(m_uuid, "Farm")));
+                m_AA.setAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Farm"), (long)m_AA.getAccountInfo(m_UIA.getUserGroupUUID(p.getUniqueId(),"Farm"))-10000);
+                initItemSetting();
+                p.openInventory(inv);
+                break;
+        }
+    }
+}

GUI/ItemManager.java

@@ -0,0 +1,60 @@
+package org.poopki.duckdns.user_db.GUI;
+
+import org.bukkit.ChatColor;
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.poopki.duckdns.user_db.Array.AccountArray;
+import org.poopki.duckdns.user_db.Array.FarmArray;
+import org.poopki.duckdns.user_db.Array.NationArray;
+import org.poopki.duckdns.user_db.Array.SquadArray;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.Arrays;
+import java.util.UUID;
+
+public class ItemManager {
+    UUID ZERO_UUID = new UUID(0,0);
+    public ItemStack btn1 = buildItem(Material.CANDLE, 1, ChatColor.AQUA +"지갑 10000원 증가", "", ChatColor.GREEN + "----");
+    public ItemStack btn2 = buildItem(Material.BEEF, 1, ChatColor.AQUA +"지갑 10000원 감소", "", ChatColor.GREEN + "----");
+    public ItemStack btn3 = buildItem(Material.TORCH, 1, ChatColor.AQUA +"국가 10000원 증가", "", ChatColor.GREEN + "----");
+    public ItemStack btn4 = buildItem(Material.GRASS, 1, ChatColor.AQUA +"국가 10000원 감소", "", ChatColor.GREEN + "----");
+    public ItemStack btn5 = buildItem(Material.DIAMOND, 1, ChatColor.AQUA +"농장 10000원 증가", "", ChatColor.GREEN + "----");
+    public ItemStack btn6 = buildItem(Material.IRON_INGOT, 1, ChatColor.AQUA +"농장 10000원 증가", "", ChatColor.GREEN + "----");
+    private static ItemStack buildItem(Material type, int amount, String displayName, String... lore) {
+        ItemStack stack = new ItemStack(type, amount);
+        ItemMeta meta = stack.getItemMeta();
+        meta.setDisplayName(displayName);
+        meta.setLore(Arrays.asList(lore));
+        stack.setItemMeta(meta);
+        return stack;
+    }
+    public ItemStack GetBalance(AccountArray AA, UserInfoArray UIA, FarmArray FA, NationArray NA, SquadArray SA, UUID m_uuid, String Type){
+
+        ItemStack dia = null;
+        switch (Type){
+            case "User":
+                dia = buildItem(Material.DIAMOND, 1, ChatColor.AQUA +""+UIA.getUserName(m_uuid), "잔액", ChatColor.GREEN + ""+AA.getAccountInfo(m_uuid));
+                break;
+            case "Farm":
+                if(ZERO_UUID.equals(UIA.getUserGroupUUID(m_uuid, "Farm"))){
+                    dia = buildItem(Material.DIAMOND, 1, ChatColor.AQUA +"농장 없음", "잔액", ChatColor.GREEN + "----");
+                }else{
+                    dia = buildItem(Material.DIAMOND, 1, ChatColor.AQUA +""+FA.GetGroupName(UIA.getUserGroupUUID(m_uuid,"Farm")), "잔액", ChatColor.GREEN + ""+AA.getAccountInfo(UIA.getUserGroupUUID(m_uuid, "Farm")));
+                }
+                break;
+            case "Nation":
+                if(ZERO_UUID.equals(UIA.getUserGroupUUID(m_uuid, "Nation"))){
+                    dia = buildItem(Material.DIAMOND, 1, ChatColor.AQUA +"국가 없음", "잔액", ChatColor.GREEN + "----");
+                }
+                else{
+                    dia = buildItem(Material.DIAMOND, 1, ChatColor.AQUA +""+NA.GetGroupName(UIA.getUserGroupUUID(m_uuid, "Nation")), "잔액", ChatColor.GREEN + ""+AA.getAccountInfo(UIA.getUserGroupUUID(m_uuid, "Nation")));
+                }
+                
+                break;
+        }
+        return dia;
+    }
+
+
+}

GUI/OpenInv.java

@@ -0,0 +1,50 @@
+package org.poopki.duckdns.user_db.GUI;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.poopki.duckdns.user_db.Array.AccountArray;
+import org.poopki.duckdns.user_db.Array.FarmArray;
+import org.poopki.duckdns.user_db.Array.NationArray;
+import org.poopki.duckdns.user_db.Array.SquadArray;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+public class OpenInv implements Listener,CommandExecutor {
+    AccountArray m_AccountArray;
+    UserInfoArray m_UserInfoArray;
+    FarmArray m_FarmArray;
+    NationArray m_NationArray;
+    SquadArray m_SquadArray;
+    public OpenInv(UserInfoArray m_UIA, FarmArray FA, NationArray NA, SquadArray SA, AccountArray AA){
+        m_UserInfoArray = m_UIA;
+        m_AccountArray  = AA;
+        m_FarmArray     = FA;
+        m_NationArray   = NA;
+        m_SquadArray    = SA;
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        if(sender instanceof Player){
+            Player player = (Player) sender;
+            player.sendMessage("이벤트 발생");
+            BaseGUI inv = new BaseGUI(m_AccountArray,m_UserInfoArray,m_FarmArray,m_NationArray, m_SquadArray,((Player) sender).getUniqueId(), null);
+            inv.open(player);
+        }
+        return false;
+    }
+    @EventHandler
+    public void inven2(InventoryClickEvent e){
+        Player player = (Player) e.getWhoClicked();;
+        player.sendMessage("이벤트 발생");
+        BaseGUI inv = new BaseGUI(m_AccountArray,m_UserInfoArray,m_FarmArray,m_NationArray, m_SquadArray, player.getUniqueId(), e);
+        inv.inven(e);
+
+    }
+
+
+
+}

Invite/Invitation.java

@@ -0,0 +1,40 @@
+package org.poopki.duckdns.user_db.Invite;
+
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.Array.FarmArray;
+import org.poopki.duckdns.user_db.Array.NationArray;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.UUID;
+
+public class Invitation {
+    protected long Time;
+    protected String Type;
+
+    protected UUID uuid;
+
+    protected Player sender;
+    protected Player receiver;
+    public Invitation(long Time, String Type, UUID uuid, Player sender, Player receiver){
+        this.Time = Time;
+        this.Type = Type;
+        this.uuid = uuid;
+        this.sender = sender;
+        this.receiver = receiver;
+    }
+
+    public long getTime(){
+        return this.Time;
+    }
+
+    public String getType(){
+        return this.Type;
+    }
+
+    public UUID getUUID(){
+        return this.uuid;
+    }
+    public Player getSender(){return this.sender;}
+    public Player getReceiver(){ return this.receiver;}
+
+}

Invite/InviteMaster.java

@@ -0,0 +1,220 @@
+package org.poopki.duckdns.user_db.Invite;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.poopki.duckdns.user_db.Array.FarmArray;
+import org.poopki.duckdns.user_db.Array.NationArray;
+import org.poopki.duckdns.user_db.Array.SquadArray;
+import org.poopki.duckdns.user_db.UserInfoArray;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+public class InviteMaster implements CommandExecutor {
+    private static Map<UUID, Invitation> m_InviteQueue = new HashMap<UUID, Invitation>();
+    UserInfoArray m_UserInfoArray;
+    FarmArray m_FarmArray;
+    NationArray m_NationArray;
+    SquadArray m_SquadArray;
+    public InviteMaster(UserInfoArray UIA, FarmArray FA, NationArray NA, SquadArray SA){
+        m_UserInfoArray = UIA;
+        m_FarmArray = FA;
+        m_NationArray = NA;
+        m_SquadArray = SA;
+    }
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        Player p = (Player)sender;
+
+        if (args.length == 0){
+            p.sendMessage("명령어를 확인해주세요.");
+            return false;
+        }
+        switch (args[0]) {
+            case "국가": {
+                if (args.length == 1) {
+                    p.sendMessage("초대 대상을 입력해주세요.");
+                    return false;
+
+                }
+                UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                if (op == null) {
+                    p.sendMessage("잘못된 대상입니다.");
+                    return false;
+                }
+                if (p.getUniqueId().equals(op)) {
+                    p.sendMessage("자기 자신에게 초대를 보낼 수 없습니다.");
+                } else {
+                    p.sendMessage(args[1]+"님께 초대를 발송하였습니다.");
+                    sendInvite(p, Bukkit.getPlayer(args[1]), m_UserInfoArray, m_FarmArray, m_NationArray, m_SquadArray,"국가");
+                }
+                break;
+            }
+            case "농장": {
+                if (args.length < 1) {
+                    p.sendMessage("초대 대상을 입력해주세요.");
+                    return false;
+                }
+                UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                if (op == null) {
+                    p.sendMessage("잘못된 대상입니다.");
+                    return false;
+                }
+                if (p.getUniqueId().equals(op)) {
+                    p.sendMessage("자기 자신에게 초대를 보낼 수 없습니다.");
+                } else {
+                    p.sendMessage(args[1]+"님께 초대를 발송하였습니다.");
+                    sendInvite(p, Bukkit.getPlayer(args[1]), m_UserInfoArray, m_FarmArray, m_NationArray, m_SquadArray,"농장");
+                }
+                break;
+            }
+            case "분대": {
+                if (args.length < 1) {
+                    p.sendMessage("초대 대상을 입력해주세요.");
+                    return false;
+                }
+                UUID op = m_UserInfoArray.getUserUUID(args[1]);
+                if (op == null) {
+                    p.sendMessage("잘못된 대상입니다.");
+                    return false;
+                }
+                if (p.getUniqueId().equals(op)) {
+                    p.sendMessage("자기 자신에게 초대를 보낼 수 없습니다.");
+                } else {
+                    p.sendMessage(args[1]+"님께 초대를 발송하였습니다.");
+                    sendInvite(p, Bukkit.getPlayer(args[1]), m_UserInfoArray, m_FarmArray, m_NationArray, m_SquadArray,"분대");
+                }
+                break;
+            }
+            case "수락": {
+                replyInvite(p, m_UserInfoArray, m_FarmArray, m_NationArray, m_SquadArray,true);
+                break;
+            }
+            case "거절": {
+                replyInvite(p, m_UserInfoArray, m_FarmArray, m_NationArray, m_SquadArray,false);
+                break;
+            }
+            default: {
+                p.sendMessage("명령어를 확인해주세요.");
+                return false;
+            }
+        }
+        return true;
+    }
+    public boolean sendInvite(Player sender, Player receiver, UserInfoArray UIA, FarmArray FA, NationArray NA, SquadArray SA, String Type){
+        if(!isExpired(receiver.getUniqueId())){
+            sender.sendMessage("응답 대기중");
+            return false;
+        }
+
+        switch (Type){
+            case "농장":
+                    if(FA.GetGroupMemNUM(UIA.getUserGroupUUID(sender.getUniqueId(),"Farm"))>FA.GetGroupMemMaxNum(UIA.getUserGroupUUID(sender.getUniqueId(),"Farm"))){
+                        sender.sendMessage("인원이 초과되었습니다.");
+                        return false;
+                    }
+                    else{
+                        m_InviteQueue.put(receiver.getUniqueId(), new Invitation(System.currentTimeMillis(), "농장", UIA.getUserGroupUUID(sender.getUniqueId(),"Farm"), sender, receiver));
+                        receiver.sendMessage(sender.getDisplayName()+"님의 "+FA.GetGroupName(UIA.getUserGroupUUID(sender.getUniqueId(),"Farm"))+"에 초대되었습니다.");
+                        receiver.sendMessage("제한시간(5분)내 /초대 수락 혹은 /초대 거절 입력해주시기 바랍니다.");
+                    }
+                break;
+            case "국가":
+                    if(NA.GetGroupMemNUM(UIA.getUserGroupUUID(sender.getUniqueId(),"Nation"))>NA.GetGroupMemMaxNum(UIA.getUserGroupUUID(sender.getUniqueId(),"Nation"))){
+                        sender.sendMessage("인원이 초과되었습니다.");
+                        return false;
+                    }
+                    else{
+                        m_InviteQueue.put(receiver.getUniqueId(), new Invitation(System.currentTimeMillis(), "국가", UIA.getUserGroupUUID(sender.getUniqueId(),"Nation"), sender, receiver));
+                        receiver.sendMessage(sender.getDisplayName()+"님의 "+NA.GetGroupName(UIA.getUserGroupUUID(sender.getUniqueId(),"Nation"))+"에 초대되었습니다.");
+                        receiver.sendMessage("제한시간(5분)내 /초대 수락 혹은 /초대 수락 입력해주시기 바랍니다."+receiver.getUniqueId());
+                    }
+                break;
+            case "분대":
+                    if(SA.GetGroupMemNUM(UIA.getUserGroupUUID(sender.getUniqueId(),"Squad"))>SA.GetGroupMemMaxNum(UIA.getUserGroupUUID(sender.getUniqueId(),"Squad"))){
+                        sender.sendMessage("인원이 초과되었습니다.");
+                        return false;
+                    }
+                    else{
+                        m_InviteQueue.put(receiver.getUniqueId(), new Invitation(System.currentTimeMillis(), "분대", UIA.getUserGroupUUID(sender.getUniqueId(),"Squad"), sender, receiver));
+                        receiver.sendMessage(sender.getDisplayName()+"님의 "+SA.GetGroupName(UIA.getUserGroupUUID(sender.getUniqueId(),"Squad"))+"에 초대되었습니다.");
+                        receiver.sendMessage("제한시간(5분)내 /초대 수락 혹은 /초대 수락 입력해주시기 바랍니다."+receiver.getUniqueId());
+                    }
+                break;
+        }
+        return true;
+    }
+
+    public boolean replyInvite(Player receiver, UserInfoArray UIA, FarmArray FA, NationArray NA, SquadArray SA, boolean accept){
+
+        if(isExpired(receiver.getUniqueId())){
+            m_InviteQueue.remove(receiver.getUniqueId());
+            receiver.sendMessage("수신 받은 초대가 없거나, 초대가 만료되었습니다.");
+            return false;
+        }
+        Player sender = m_InviteQueue.get(receiver.getUniqueId()).getSender();
+
+        if(!accept){
+            sender.sendMessage(receiver.getDisplayName()+"님께서 초대를 거절하였습니다.");
+            receiver.sendMessage("초대를 거절하였습니다.");
+            m_InviteQueue.remove(receiver.getUniqueId());
+            return false;
+        }
+
+        String Type = m_InviteQueue.get(receiver.getUniqueId()).getType();
+        switch (Type){
+            case "농장":
+                if(FA.GetGroupMemNUM(m_InviteQueue.get(receiver.getUniqueId()).getUUID())>FA.GetGroupMemMaxNum(m_InviteQueue.get(receiver.getUniqueId()).getUUID())){
+                    sender.sendMessage("인원이 초과되었습니다.");
+                    receiver.sendMessage("인원이 초과되었습니다..");
+                    m_InviteQueue.remove(receiver.getUniqueId());
+                    return false;
+                }
+                else{
+                    sender.sendMessage(receiver.getDisplayName()+"님께서 초대를 수락하였습니다.");
+                    receiver.sendMessage("가입되었습니다.  "+ m_InviteQueue.get(receiver.getUniqueId()).getUUID()+"  "+ receiver.getUniqueId());
+                    receiver.sendMessage(""+FA.SignUpGroup("Farm", m_InviteQueue.get(receiver.getUniqueId()).getUUID(), receiver.getUniqueId()));
+                    m_InviteQueue.remove(receiver.getUniqueId());
+                }
+                break;
+            case "국가":
+                if(NA.GetGroupMemNUM(m_InviteQueue.get(receiver.getUniqueId()).getUUID())>NA.GetGroupMemMaxNum(m_InviteQueue.get(receiver.getUniqueId()).getUUID())){
+                    sender.sendMessage("인원이 초과되었습니다.");
+                    receiver.sendMessage("인원이 초과되었습니다.");
+                    m_InviteQueue.remove(receiver.getUniqueId());
+                    return false;
+                }
+                else{
+                    receiver.sendMessage("가입되었습니다."+m_InviteQueue.get(receiver.getUniqueId()).getUUID()+ " "+ m_InviteQueue.get(receiver.getUniqueId()).getReceiver());
+                    NA.SignUpGroup("Nation", m_InviteQueue.get(receiver.getUniqueId()).getUUID(), receiver.getUniqueId());
+                    m_InviteQueue.remove(receiver.getUniqueId());
+                }
+                break;
+            case "분대":
+                if(SA.GetGroupMemNUM(m_InviteQueue.get(receiver.getUniqueId()).getUUID())>SA.GetGroupMemMaxNum(m_InviteQueue.get(receiver.getUniqueId()).getUUID())){
+                    sender.sendMessage("인원이 초과되었습니다.");
+                    receiver.sendMessage("인원이 초과되었습니다.");
+                    m_InviteQueue.remove(receiver.getUniqueId());
+                    return false;
+                }
+                else{
+                    receiver.sendMessage("가입되었습니다."+m_InviteQueue.get(receiver.getUniqueId()).getUUID()+ " "+ m_InviteQueue.get(receiver.getUniqueId()).getReceiver());
+                    SA.SignUpGroup("Squad", m_InviteQueue.get(receiver.getUniqueId()).getUUID(), receiver.getUniqueId());
+                    m_InviteQueue.remove(receiver.getUniqueId());
+                }
+                break;
+            default:
+                receiver.sendMessage("다시 입력");
+                break;
+        }
+
+        return true;
+    }
+    private boolean isExpired(UUID uuid){
+        return !m_InviteQueue.containsKey(uuid) || (System.currentTimeMillis() - m_InviteQueue.get(uuid).getTime()) >= 300000L;
+    }
+}

Project.The_SEED.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" packagePrefix="org.poopki.duckdns.user_db" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

README.md

@@ -0,0 +1 @@
+![](http://poopki.duckdns.org:3000/poopki/Project.The_SEED/raw/branch/master/IMG/logo.png)

Status.java

@@ -1,29 +1,88 @@
 package org.poopki.duckdns.user_db;
 
 public class Status {
-    int m_HP;
-    int m_MP;
-    int m_Level;
+    int m_BASE_HP;
+    int m_BASE_MP;
+    int m_BASE_STR;
+    int m_BASE_DEX;
+    int m_BASE_INT;
+    int m_BASE_LUK;
+
+    int m_BASE_PATK;
+    int m_BASE_PDEF;
+    int m_BASE_MATK;
+    int m_BASE_MDEF;
+
+    int m_EQ_HP;
+    int m_EQ_MP;
 
-    int m_STR;
-    int m_DEX;
-    int m_INT;
-    int m_LUK;
+    int m_EQ_STR;
+    int m_EQ_DEX;
+    int m_EQ_INT;
+    int m_EQ_LUK;
 
-    int m_PATK;
-    int m_PDEF;
-    int m_MATK;
-    int m_MDEF;
+    int m_EQ_PATK;
+    int m_EQ_PDEF;
+    int m_EQ_MATK;
+    int m_EQ_MDEF;
+
+    int m_EXP;
+    int m_MAX_EXP;
+    int m_Level;
     //방어율 = (방어력 / (100 + 방어력)
     //Add Equipment Class instance
     public Status(int HP, int MP, int Level, int STR, int DEX, int INT, int LUK){
-        m_HP = HP;
-        m_MP = MP;
+        m_BASE_HP = HP;
+        m_BASE_MP = MP;
         m_Level = Level;
 
-        m_STR = STR;
-        m_DEX = DEX;
-        m_INT = INT;
-        m_LUK = LUK;
+        m_BASE_STR = STR;
+        m_BASE_DEX = DEX;
+        m_BASE_INT = INT;
+        m_BASE_LUK = LUK;
     }
+
+    public int GetBaseHP(){return m_BASE_HP;}
+    public int GetBaseMP(){return m_BASE_MP;}
+    public int GetBaseSTR(){return m_BASE_STR;}
+    public int GetBaseDEX(){return m_BASE_DEX;}
+    public int GetBaseINT(){return m_BASE_INT;}
+    public int GetBaseLUK(){return m_BASE_LUK;}
+    public int GetEXP(){return m_EXP;}
+    public int GetMaxEXP(){return m_MAX_EXP;}
+    public int GetLevel(){return m_Level;}
+
+    public int SetBaseHP(int HP){return m_BASE_HP=HP;}
+    public int SetBaseMP(int MP){return m_BASE_MP=MP;}
+    public int SetBaseSTR(int STR){return m_BASE_STR=STR;}
+    public int SetBaseDEX(int DEX){return m_BASE_DEX=DEX;}
+    public int SetBaseINT(int INT){return m_BASE_INT=INT;}
+    public int SetBaseLUK(int LUK){return m_BASE_LUK=LUK;}
+    public int SetEXP(int EXP){return m_EXP=EXP;}
+    public int SetMaxEXP(int EXP){return m_MAX_EXP=EXP;}
+    public int SetLevel(int Level){return m_Level=Level;}
+
+    public int GetBasePATK(){return m_BASE_PATK;}
+    public int GetBasePDEF(){return m_BASE_PDEF;}
+    public int GetBaseMATK(){return m_BASE_MATK;}
+    public int GetBaseMDEF(){return m_BASE_MDEF;}
+
+    public int GetEqHP(){return m_EQ_HP;}
+    public int GetEqMP(){return m_EQ_MP;}
+    public int GetEqSTR(){return m_EQ_STR;}
+    public int GetEqDEX(){return m_EQ_DEX;}
+    public int GetEqINT(){return m_EQ_INT;}
+    public int GetEqLUK(){return m_EQ_LUK;}
+
+    public int SetEqHP(int HP){return m_EQ_HP=HP;}
+    public int SetEqMP(int MP){return m_EQ_MP=MP;}
+    public int SetEqSTR(int STR){return m_EQ_STR=STR;}
+    public int SetEqDEX(int DEX){return m_EQ_DEX=DEX;}
+    public int SetEqINT(int INT){return m_EQ_INT=INT;}
+    public int SetEqLUK(int LUK){return m_EQ_LUK=LUK;}
+
+    public int GetEqPATK(){return m_EQ_PATK;}
+    public int GetEqPDEF(){return m_EQ_PDEF;}
+    public int GetEqMATK(){return m_EQ_MATK;}
+    public int GetEqMDEF(){return m_EQ_MDEF;}
 }

UserInfo.java

@@ -1,37 +1,28 @@
 package org.poopki.duckdns.user_db;
 
-import java.util.HashMap;
-import java.util.Map;
-import java.util.UUID;
+import java.util.*;
 
 public class UserInfo extends Status {
     private UUID m_UUID;
     private String m_Name;
 
-    private static Map<String, Integer> m_status = new HashMap<String, Integer>();
-
-    private int m_Nation;
-    private int m_Squad;
-    private int m_Farm;
-
-     public UserInfo(UUID uuid, String Name, int Nation, int Squad, int Farm){ //UserInfo 초기화
-        super(100,100,1,10,10,10,10);
+    private Map<String, UUID> m_GroupUUID = new HashMap<String, UUID>();
+     public UserInfo(UUID uuid, String Name, UUID Nation, UUID Squad, UUID Farm, UUID Party){ //UserInfo 초기화
+        super(100,100,1,10,10,10,10); //HP, MP, LEV, STR, DEX, INT, LUK
         m_UUID = uuid;
         m_Name = Name;
-        m_Nation = Nation;
-        m_Squad = Squad;
-        m_Farm = Farm;
-    }
 
-    public void JoinNation(int Nation) { m_Nation = Nation; }
-    public void JoinSquad(int Squad) { m_Squad = Squad; }
-    public void JoinFarm(int Farm) { m_Farm = Farm; }
+        m_GroupUUID.put("Nation", Nation);
+        m_GroupUUID.put("Squad", Squad);
+        m_GroupUUID.put("Farm", Farm);
+        m_GroupUUID.put("Party", Party);
+    }
 
+    public void SetGroupUUID(String GroupType, UUID m_UUID){ m_GroupUUID.put(GroupType, m_UUID); }
+    public UUID GetGroupUUID(String GroupType){ return m_GroupUUID.get(GroupType); }
     public String getUserName(){
         return m_Name;
     }
-
     public UUID getUserUUID(){ return m_UUID; }
 
-
 }

UserInfoArray.java

@@ -6,8 +6,8 @@ import java.util.Set;
 import java.util.UUID;
 
 public class UserInfoArray {
-    private static Map<UUID, UserInfo> m_UserInfoArray = new HashMap<UUID, UserInfo>();
-
+    private Map<UUID, UserInfo> m_UserInfoArray = new HashMap<UUID, UserInfo>();
+    private Map<String, UUID> m_UserNameUUID = new HashMap();
     public String getUserName(UUID uuid){ // 유저 이름 return
         return m_UserInfoArray.get(uuid).getUserName();
     }
@@ -17,7 +17,20 @@ public class UserInfoArray {
     public Set<UUID> getKeySet(){ // 유저 목록 return
             return m_UserInfoArray.keySet();
     }
-    public void putUserInfo(UUID uuid,String Name, int Nation, int Squad, int Farm) { // UserInfoArray entry 입력
-        m_UserInfoArray.put(uuid, new UserInfo(uuid,Name, Nation, Squad, Farm));
+
+    public UUID getUserGroupUUID(UUID PlayerUUID, String GroupType){
+        return m_UserInfoArray.get(PlayerUUID).GetGroupUUID(GroupType);
+    }
+    public UUID getUserUUID(String Name){
+        return m_UserNameUUID.get(Name);
+    }
+    public void setUserGroupUUID(String GroupType, UUID PlayerUUID, UUID GroupUUID){
+          m_UserInfoArray.get(PlayerUUID).SetGroupUUID(GroupType,GroupUUID);
     }
+
+    public void putUserInfo(UUID uuid,String Name, UUID Nation, UUID Squad, UUID Farm, UUID Party) { // UserInfoArray entry 입력
+        m_UserInfoArray.put(uuid, new UserInfo(uuid,Name, Nation, Squad, Farm, Party));
+        m_UserNameUUID.put(Name, uuid);
+    }
+
 }

UserJoin.java

@@ -3,6 +3,9 @@ import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerJoinEvent;
+import org.poopki.duckdns.user_db.Array.AccountArray;
+
+import java.util.UUID;
 
 public class UserJoin implements Listener {
     private UserInfoArray m_InfoArrayInstance;
@@ -15,7 +18,7 @@ public class UserJoin implements Listener {
     public void PlayerLogin(PlayerJoinEvent e) {
         Player p = e.getPlayer();
         if(!m_InfoArrayInstance.checkNewUser(p.getUniqueId())){ //새로운 user인 경우 array에 등록
-            m_InfoArrayInstance.putUserInfo(p.getUniqueId(), p.getName(), 0, 0, 0);
+            m_InfoArrayInstance.putUserInfo(p.getUniqueId(), p.getName(), new UUID(0,0), new UUID(0,0), new UUID(0,0), new UUID(0,0));
             m_AccountArray.putAccountInfo(p.getUniqueId(), 0);
         }
     }

User_DB.java

@@ -2,19 +2,22 @@ package org.poopki.duckdns.user_db;
 
 import org.bukkit.event.Listener;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.poopki.duckdns.user_db.Array.*;
 import org.poopki.duckdns.user_db.DB.*;
-import java.sql.Connection;
+import org.poopki.duckdns.user_db.GUI.*;
+import org.poopki.duckdns.user_db.Invite.*;
 import java.sql.SQLException;
-import java.sql.Statement;
 
 
 public final class User_DB extends JavaPlugin implements Listener {
 
     AccountArray m_AccountArrayInstance = new AccountArray();
-    UserInfoArray m_InfoArrayInstance = new UserInfoArray(); // UserInfo저장하는 Array instance 생성
+    UserInfoArray m_InfoArrayInstance = new UserInfoArray(); // UserInfo 저장하는 Array instance 생성
+    FarmArray m_FarmArrayInstance = new FarmArray(m_InfoArrayInstance);
+    NationArray m_NationArrayInstance = new NationArray(m_InfoArrayInstance);
+    SquadArray m_SquadArrayInstance = new SquadArray(m_InfoArrayInstance);
+    DBUpdate Database_backup = new DBUpdate(m_InfoArrayInstance, m_FarmArrayInstance, m_NationArrayInstance, m_SquadArrayInstance, m_AccountArrayInstance);
 
-
-    DBUpdate Database_backup = new DBUpdate(m_InfoArrayInstance, m_AccountArrayInstance);
     @Override
     public void onEnable() {
         // Plugin startup logic
@@ -24,8 +27,17 @@ public final class User_DB extends JavaPlugin implements Listener {
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
-
+        getCommand("계좌").setExecutor(new AccountEventHandler(m_InfoArrayInstance, m_AccountArrayInstance));
+        getCommand("농장").setExecutor(new FarmEventHandler(m_InfoArrayInstance, m_FarmArrayInstance, m_AccountArrayInstance));
+        getCommand("국가").setExecutor(new NationEventHandler(m_InfoArrayInstance,  m_NationArrayInstance, m_AccountArrayInstance));
+        getCommand("분대").setExecutor(new SquadEventHandler(m_InfoArrayInstance,  m_SquadArrayInstance, m_AccountArrayInstance));
+        getCommand("opitem").setExecutor(new OpenInv(m_InfoArrayInstance, m_FarmArrayInstance, m_NationArrayInstance, m_SquadArrayInstance, m_AccountArrayInstance));
+        getCommand("초대").setExecutor(new InviteMaster(m_InfoArrayInstance, m_FarmArrayInstance, m_NationArrayInstance, m_SquadArrayInstance));
         getServer().getPluginManager().registerEvents(new UserJoin(m_InfoArrayInstance, m_AccountArrayInstance),this);
+        getServer().getPluginManager().registerEvents(new OpenInv( m_InfoArrayInstance, m_FarmArrayInstance, m_NationArrayInstance, m_SquadArrayInstance, m_AccountArrayInstance), this);
+
+
+
     }
 
     @Override