//client 부분 코드 입니다.
import java.net.*;
import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;

public class Client extends Frame implements Runnable, KeyListener, ActionListener
{
 Socket socket;
 DataInputStream dis;
 DataOutputStream dos;
 private TextField tf = new TextField(15);
 private Label lb = new Label("대화명", Label.RIGHT);
 TextArea ta = new TextArea();
 TextField tf_1 = new TextField(20);
 Button bt = new Button("EXIT");
 String userName;
 public void init(){
  this.start();
  this.setSize(200, 100);
  this.setVisible(true);
 }
 public void start(){
  this.setLayout(new FlowLayout());
  Panel pn = new Panel();
  pn.add(lb);
  pn.add(tf);
  this.add(pn);
  tf.addKeyListener(this);
  tf_1.addKeyListener(this);
  bt.addActionListener(this);
 }
 
 public void actionPerformed(ActionEvent e)  {
  System.exit(0);

 }
 public void keyPressed(KeyEvent e){
  if (e.getKeyCode() == KeyEvent.VK_ENTER && e.getSource() == tf)
  {
   userName = tf.getText();
   this.setVisible(false);
   newDisplay();
  } else if (e.getKeyCode() == KeyEvent.VK_ENTER && e.getSource() == tf_1)
  {
   String str = tf_1.getText();
   System.out.println("1111111111"+str);
   display(str);
  }
 }
 public void newDisplay(){
  Frame fm = new Frame();
  fm.setLayout(new BorderLayout());
  fm.add("Center", ta);
  Panel pn_1 = new Panel(new FlowLayout());
  pn_1.add(tf_1);
  pn_1.add(bt);
  fm.add("South",pn_1);

  ta.setEnabled(false);
  fm.setSize(300, 200);
  fm.setVisible(true);
 }
 public void keyReleased(KeyEvent e){}
 public void keyTyped(KeyEvent e){}
 public Client(){
  try{
   socket = new Socket("localhost", 9876);
   dis = new DataInputStream(socket.getInputStream());
   dos = new DataOutputStream(socket.getOutputStream());
   Thread th = new Thread(this);
   th.start();
  }catch(IOException e){}
 }

 public void run(){
  try{
    while(true){
    String readMsg = dis.readUTF();
    ta.append(readMsg+ "\\n");
    System.out.println(readMsg);
    }
  }catch(IOException e){}
 }
 
 
 public void display(String sendMsg){
  try{
   //BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
   //while(true){
    //String sendMsg = reader.readLine();
   String str = userName + "> "+sendMsg;
   dos.writeUTF(str);
    //dos.writeUTF(sendMsg );

   //}
  }catch(IOException e){}
 }

 public static void main(String args[]){
  Client c = new Client();
  c.init();
 }
};

//Server코드 부분입니다.
import java.net.*;
import java.util.*;
import java.io.*;

public class Server
{
 ServerSocket server;
 Socket socket;

 public Server(){
  try{
   server = new ServerSocket(9876);
   
   while(true){
    System.out.println("Server ready...");
    socket = server.accept();
    ServerHandle sh = new ServerHandle(socket);
    Thread th = new Thread(sh);
    th.start();
   }
  }catch(IOException e){}
 }

 public static void main(String args[]){
 
   Server s = new Server();
  
 }
};

class ServerHandle implements Runnable
{
 public DataInputStream dis;
 public DataOutputStream dos;
 public Socket socket;
 public static Vector v = new Vector();

 public ServerHandle(Socket socket){
  try{
   this.socket = socket;
   dis = new DataInputStream(socket.getInputStream());
   dos = new DataOutputStream(socket.getOutputStream());
   v.addElement(this);
  }catch(IOException e){}
 }

 public void run(){
  try{
   while(true){
    String readMsg = dis.readUTF();
    System.out.println(readMsg);
    broad(readMsg);
   }
  }catch(IOException e){
   removeVector(this); 
  }
 } 
 public void removeVector(ServerHandle sh){
  v.removeElement(sh) ;
 }
 public void broad(String msg){
  try{
   for(int i=0; i<v.size(); i++){
    ServerHandle sh = (ServerHandle) v.elementAt(i);
    sh.dos.writeUTF(msg);
   }
  }catch(IOException e){}
 }
};
조금 급해서 그런데....코드 주석좀 부탁드립니다.
부탁드립니다.