Multi-Threading in Swing Applications

Hi guys, i'm new to this forum. me and a friend are trying to implement threads in a windows application. what we're trying to do is having an msclock updated every second so it appears on the window real-time.. this is the code we've done till now

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.text.DateFormat;

import java.util.*;

publicclass MainProgextends Frameimplements Runnable{

Button moveButt;

Label label1;

TextField t;

private Thread clockThread =null;

publicvoid start(){

if (clockThread ==null){

clockThread =new Thread(this,"Clock");

clockThread.start();

}

}

publicvoid run(){

Thread myThread = Thread.currentThread();

while (clockThread == myThread){

repaint();

try{

Thread.sleep(1000);

}

catch (InterruptedException e){

}

}

}

public MainProg(){

setLayout (new FlowLayout(FlowLayout.CENTER, 50, 50));

setTitle("Time");

label1 =new Label("Time:");

add(label1);

}

publicvoid paint(Graphics g){

// get the time and convert it to a date

Calendar cal = Calendar.getInstance();

Date date = cal.getTime();

// format it and display it

DateFormat dateFormatter = DateFormat.getTimeInstance();

g.drawString(dateFormatter.format(date), 75, 120);

}

publicvoid stop (){

clockThread =null;}

}

publicstaticvoid main (String[] args)

{ Frame f =new MainProg();

f.setSize(200,300);

f.setVisible(true);

f.addWindowListener(new WindowAdapter (){

publicvoid windowClosing(WindowEvent e){

System.exit(0);

}

});

}

with the above coding, the result is a clock displayed on screen without real-time updating. could you please suggest what we could add to make it work?

Erika

[4068 byte] By [eka018a] at [2007-11-27 5:05:41]