code:


import java.util.*;

import java.net.*;



class User {

    private String name;



    public User(String name) { this.name = name; }

}





class SocketManager {

    private Map<Socket,User> m = new HashMap<Socket,User>();

    

    public void setUser(Socket s, User u) {

        m.put(s, u);

    }

    public User getUser(Socket s) {

        return m.get(s);

    }

    public void removeUser(Socket s) {

        m.remove(s);

    }

}



public class Leaky1

{

    public static void main (String[] args)

    {

        ServerSocket serverSocket;

        Socket clientSocket;

        SocketManager socketManager = new SocketManager();

        String userName;

        int userId = 1;



        try {

            serverSocket = new ServerSocket(1025);

            while (true) {

                clientSocket = serverSocket.accept();

                userName = "Testa" + userId;

                System.out.println ("New user " + userName);

                socketManager.setUser(clientSocket, new User(userName));

                // here you will do something useful, probably launching


                // a thread for doing the job

                clientSocket.close();

                userId++;

            }

        }

        catch (Exception e) {

            System.exit(1);

        }

    }

}