Game Client

import java.io.*;
import java.net.*;
import java.util.Scanner;

public class MainClient implements Runnable {
    static Socket userSocket;
    private Scanner INPUT;
    private PrintWriter OUT;
    String MESSAGE = "";

    public MainClient(Socket X){
        this.userSocket = X;
    }

    public void checkConnection() throws IOException{
        if(!userSocket.isConnected()){
            for(int i = 1; i<= MainServer.connectionArray.size(); i++){
                if(MainServer.connectionArray.get(i) == userSocket){
                    MainServer.connectionArray.remove(i);
                }

                for(int i2 = 1; i2 <= MainServer.connectionArray.size(); i2++){
                    Socket TEMP = MainServer.connectionArray.get(i-1);
                    PrintWriter OUTw = new PrintWriter(TEMP.getOutputStream());
                    OUTw.println(TEMP.getLocalAddress().getHostAddress() + " LEFT");
                }
            }
        }
    }

    public void run(){
        try{
            try{
                INPUT = new Scanner(userSocket.getInputStream());
                OUT = new PrintWriter(userSocket.getOutputStream());

                while(true){
                    checkConnection();

                    if(!INPUT.hasNext()){
                        return;
                    }

                    MESSAGE = INPUT.nextLine();
                    System.out.println("CLIENT - " + MESSAGE);

                    for(int i3 = 1; i3 <= MainServer.connectionArray.size(); i3++){
                        Socket TEMPs = MainServer.connectionArray.get(i3-1);
                        PrintWriter TEMPo = new PrintWriter(TEMPs.getOutputStream());
                        TEMPo.println(MESSAGE);
                        TEMPo.flush();
                        System.out.println("TO - " + TEMPs.getLocalAddress().getAddress());
                    }
                }
            }finally{
                userSocket.close();
            }

        }catch(Exception X){
            X.printStackTrace();
        }
    }

    public static void main(String args[]){
        new MainClient(userSocket);
    }
}