Simple Client Server Chat Application

//Server Chat Code

import java.awt.*;

import java.net.*;

import javax.swing.*;

import java.awt.event.*;

class ServerChat extends JFrame implements Runnable,ActionListener

{

TextArea msgArea;

Thread recieveThread;

TextField msgText;

Button sendButton;

DatagramSocket ds;

int cport=10,sport=11;

ServerChat() throws Exception

{

msgArea=new TextArea(10,10);

msgText=new TextField(10);

sendButton=new Button("send");

setLayout(new FlowLayout(FlowLayout.CENTER));

add(msgArea);

add(msgText);

add(sendButton);

sendButton.addActionListener(this);

setBounds(10,10,200,200);

setVisible(true);

ds=new DatagramSocket(sport);

recieveThread=new Thread(this);

recieveThread.start();

}

public void actionPerformed(ActionEvent e)

{

try

{

String message=msgText.getText();

DatagramPacket dp=new DatagramPacket(message.getBytes(),message.length(),InetAddress.getLocalHost(),cport);

ds.send(dp);

msgArea.append("You:"+message+"\n");

}catch(Exception e1){}

}

public void run()

{

byte b[]=new byte[1000];

while(true)

{

try

{

DatagramPacket dp=new DatagramPacket(b,b.length);

ds.receive(dp);

String data=new String(dp.getData(),0,dp.getLength());

msgArea.append("Client:"+data+"\n");

}catch(Exception e){}

}

}

public static void main(String x[]) throws Exception

{

new ServerChat();

}

}

// Client chat Code

import java.awt.*;

import java.net.*;

import javax.swing.*;

import java.awt.event.*;

class ClientChat extends JFrame implements Runnable,ActionListener

{

TextArea msgArea;

Thread recieveThread;

TextField msgText;

Button sendButton;

DatagramSocket ds;

int cport=10,sport=11;

ClientChat() throws Exception

{

msgArea=new TextArea(10,10);

msgText=new TextField(10);

sendButton=new Button("send");

setLayout(new FlowLayout(FlowLayout.CENTER));

add(msgArea);

add(msgText);

add(sendButton);

sendButton.addActionListener(this);

setBounds(10,10,200,200);

setVisible(true);

ds=new DatagramSocket(cport);

recieveThread=new Thread(this);

recieveThread.start();

}

public void actionPerformed(ActionEvent e)

{

try

{

String message=msgText.getText();

DatagramPacket dp=new DatagramPacket(message.getBytes(),message.length(),InetAddress.getLocalHost(),sport);

ds.send(dp);

msgArea.append("You:"+message+"\n");

}catch(Exception e1){}

}

public void run()

{

byte b[]=new byte[1000];

while(true)

{

try

{

DatagramPacket dp=new DatagramPacket(b,b.length);

ds.receive(dp);

String data=new String(dp.getData(),0,dp.getLength());

msgArea.append("Server:"+data+"\n");

}catch(Exception e){}

}

}

public static void main(String x[]) throws Exception

{

new ClientChat();

}

}