Chating Program with GUI in JAVA

Chating Program with GUI in JAVA :

Client Program:

AppClient.java

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import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;

class AppClient extends Frame implements ActionListener,Runnable
{
Button b;
TextField tf;
TextArea ta;
 Socket s;
 PrintWriter pw;
 BufferedReader br;
 Thread th;
 public AppClient()
 {
  Frame f=new Frame("Client Side Chatting");
  f.setLayout(new FlowLayout());
  f.setBackground(Color.orange);
  b=new Button("Send");
  b.addActionListener(this);
  f.addWindowListener(new W1());
  tf=new TextField(15);
  ta=new TextArea(12,20);
  ta.setBackground(Color.cyan);
  f.add(tf);
  f.add(b);
  f.add(ta);
  try{
   s=new Socket(InetAddress.getLocalHost(),12000);
   br=new BufferedReader(new InputStreamReader(s.getInputStream()));
   pw=new PrintWriter(s.getOutputStream(),true);
  }
  catch(Exception e){}
  th=new Thread(this);
  th.setDaemon(true);
  th.start();
  setFont(new Font("Arial",Font.BOLD,20));
  f.setSize(200,200);
  f.setVisible(true);
  f.setLocation(100,300);
  f.validate();
 }
 private class W1 extends WindowAdapter
 {
  public void windowClosing(WindowEvent we)
  {
   System.exit(0);
  }
 }
 public void actionPerformed(ActionEvent ae)
 {
  pw.println(tf.getText());
  tf.setText("");
 }
 public void run()
 {
  while(true)
  {
   try{
    ta.append(br.readLine()+"\n");
   }catch(Exception e) {}
  }
 }
 public static void main(String args[])
 {
  AppClient client = new AppClient();
 }
}

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Server Program:

AppServer.java

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import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.net.*;

/**

 * @author Suraj

 * @blog surajzanvar.blogspot.com

 */

public class AppServer extends Frame implements ActionListener,Runnable

{

 //Declarations

 Button b1;

 TextField tf;

 TextArea ta;

 ServerSocket ss;

 Socket s;

 PrintWriter pw;

 BufferedReader br;

 Thread th;

 public AppServer()

 {

  Frame f=new Frame("Server Side Chatting");//Frame for Server

  f.setLayout(new FlowLayout());//set layout

  f.setBackground(Color.orange);//set background color of the Frame

  b1=new Button("Send");//Send Button

  b1.setBackground(Color.pink);

  b1.addActionListener(this);//Add action listener to send button.

  tf=new TextField(15);

  ta=new TextArea(12,20);

  ta.setBackground(Color.cyan);

  f.addWindowListener(new W1());//add Window Listener to the Frame

  f.add(tf);//Add TextField to the frame

  f.add(b1);//Add send Button to the frame

  f.add(ta);//Add TextArea to the frame

  try{

   ss=new ServerSocket(12000);//Socket for server

   s=ss.accept();//accepts request from client

   System.out.println(s);

   //below line reads input from InputStreamReader

   br=new BufferedReader(new InputStreamReader(s.getInputStream()));

   //below line writes output to OutPutStream

   pw=new PrintWriter(s.getOutputStream(),true);

  }catch(Exception e)

  {

  }

  th=new Thread(this);//start a new thread

  th.setDaemon(true);//set the thread as demon

  th.start();

  setFont(new Font("Arial",Font.BOLD,20));

  f.setSize(200,200);//set the size

  f.setLocation(300,300);//set the location

  f.setVisible(true);

  f.validate();

 }

 //method required to close the Frame on clicking "X" icon.

 private class W1 extends WindowAdapter

 {

  public void windowClosing(WindowEvent we) 

  {

   System.exit(0);

  }

 }

 //This method will called after clicking on Send button.

 public void actionPerformed(ActionEvent ae)

 {

  pw.println(tf.getText());//write the value of textfield into PrintWriter

  tf.setText("");//clean the textfield

 }

 //Thread running as a process in background

 public void run()

 {

  while(true)

  {

   try{

    String s=br.readLine();//reads the input from textfield

    ta.append(s+"\n");//Append to TextArea

   }catch(Exception e)

   {

   }

  } 

 }

 //Main method

 public static void main(String args[]) 

 {

  //Instantiate AppServer class

  AppServer server = new AppServer();

 }

} 

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