Chat Program... Uses networking GUI and Threads

[bmm7867]

I'm trying to make a chat program, basically like an aim program. One GUI is for the buddy list, and the other is for a chat window. In my buddy list, I can't figure out a way to list other people in the network who are online. I want to use a jList. But if theres another way then that's fine. The list must also update it self when some signs on and signs off. Can anyone help??? heres what i have so far. Its the GUI plus a little networking.

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
 * CSChat_COMMENT
 *
 * @author bmm7867: Bryan Minicucci
 */

public class CSChat extends Thread{

    public static String screenName;
    private static NetworkChatServer server;
    private Set buddies;

    /**
     * creates frame
     *
     */

    public CSChat(String name) {


        super("Chat Program");

        //Frames and Labels
        JFrame buddyList = new JFrame("Chat Program");
        buddyList.setDefaultCloseOperation(buddyList.EXIT_ON_CLOSE);
        buddyList.setLayout(new BorderLayout());
        buddyList.setBackground(Color.LIGHT_GRAY);
        
        JLabel welcome = new JLabel("Welcome " + name);
        JLabel users = new JLabel("Users Online:");
        JList list = new JList();
        list.setBorder(BorderFactory.createLineBorder(Color.black,2));
        
        screenName = name;
        
        JMenuBar mb = new JMenuBar();
        buddyList.setJMenuBar(mb);
        
        JMenu fileMenu = new JMenu("File");
        mb.add(fileMenu);
        JMenu helpMenu = new JMenu("Help");
        mb.add(helpMenu);
        JMenuItem mQuit = new JMenuItem("Quit");
        fileMenu.add(mQuit);
        JMenuItem mPrint = new JMenuItem("Print Help");
        helpMenu.add(mPrint);
        
        //Adding to frame
        
 
        buddyList.getContentPane().add((welcome), BorderLayout.NORTH);
        buddyList.getContentPane().add((users), BorderLayout.WEST);
        buddyList.getContentPane().add((list), BorderLayout.CENTER);
        
        buddyList.setSize(400,400);
        buddyList.setVisible(true);
        
        //Chat Window
        JFrame chat = new JFrame("Chat with User");
        chat.setSize(400,400);
        chat.setBackground(Color.LIGHT_GRAY);
        
        chat.getContentPane().setLayout(new GridLayout(3,1));
        JLabel chatBox = new JLabel();
        JTextArea text = new JTextArea();
        JButton submit = new JButton("Submit"); 
        
        
        JMenuBar cb = new JMenuBar();
        chat.setJMenuBar(cb);
        
        JMenu fileMenu2 = new JMenu("File");
        cb.add(fileMenu2);
        JMenu editMenu2 = new JMenu("Edit");
        cb.add(editMenu2);
        JMenu helpMenu2 = new JMenu("Help");
        cb.add(helpMenu2);
        JMenuItem mQuit2 = new JMenuItem("Exit");
        fileMenu2.add(mQuit2);
        JMenuItem mFont2 = new JMenuItem("Font");
        editMenu2.add(mFont2);
        JMenuItem mPrint2 = new JMenuItem("Print Help");
        helpMenu2.add(mPrint2);
        
        
        chat.getContentPane().add(chatBox);
        chat.getContentPane().add(text);
        chat.getContentPane().add(submit);
        
        // chat.setVisible(true);
        
    }


   /**
    * main method
    *
    * @param    args      command line arguments
    */

   public static void main( String args[] ) {
       
       String myHandle = null;

       //Setting up Server
       try {
           myHandle = args[0];
           server = new NetworkChatServer();
           server.setEnabled(true);
           server.register(myHandle);

       }catch (Exception e) {
           System.err.println("" + myHandle + " is already in use");
       }
       CSChat c = new CSChat(myHandle);

   }
 

    /**
     * an Action Listener that is activated when someone requests a chat
     *
     */

   
    //    public void actionPerformed(ActionEvent e);
    //    server.addChatListener((ChatListener listen){
    //         public void registeredUsers(Set users){
    //                            buddies = users;
    //        }
         

    
    
} // CSChat

the bottom in the comment blocks was a way i was trying to create a chat listener but i couldnt get it to compile. I tried a bunch of variations