Hi,

The code to animate a cirlce works.but when i click the "click me"
button nothing happens.pls tell me why?

code is as follows:

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

public class animate implements ActionListener
{
int x=70;
int y=70;
int i;
JFrame frame;
drawpanel mydrawpanel;
JButton button;

public static void main (String[] args)
{
    animate myanimation=new animate();
    myanimation.go();
}

public void go()
{
    frame=new JFrame("Click to animate");
    mydrawpanel=new drawpanel();
    button=new JButton();
    button.setText("Click me");
    button.addActionListener(this);
    frame.getContentPane().add(BorderLayout.CENTER,mydrawpanel);
    frame.getContentPane().add(BorderLayout.SOUTH,button);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(300,300);
    frame.setVisible(true);
    for(i=0;i<130;i++)
        {
            x++;
            y++;
            mydrawpanel.repaint();

            try{Thread.sleep(50);}

            catch(Exception ex){}    }
    }

class drawpanel extends JPanel
{

    public void  paintComponent(Graphics g)
        {
        g.setColor(Color.white);
        g.fillRect(0,0,this.getWidth(),this.getHeight());
        g.setColor(Color.red);
        g.fillOval(x,y,40,40);
        }

}
public void actionPerformed(ActionEvent event)
{
    x=70;y=70;
    mydrawpanel.repaint();

    for(i=0;i<130;i++)
        {
            x++;
            y++;

            mydrawpanel.repaint();
            try{Thread.sleep(50);}
   

            catch(Exception ex){ex.printStackTrace();}    }
    }
}