Java Tutorial

 
 
 
 
/* <applet code=\"Dots\" width=300 height=300> 
</applet> */

import java.awt.*;
import java.applet.*;

public class Dots extends Applet implements Runnable
{
     int x=0,y=0;
     Thread t;
     Dimension d;

     public void init(){
         t=new Thread(this);
         t.start();
    }

    public void run(){
        while(true){
         try{
           repaint();

           //Sleep before displaying next dots
            Thread.sleep(10);
           }
          catch(Exception e) {}
         }
    }

    public void update(Graphics g){
         paint(g);
    }

    public void paint(Graphics g){
            d=getSize();
           x = (int) (Math.random() * d.getWidth());
           y = (int) (Math.random() *  d.getHeight());         
              g.fillRect(x,y,10,10);
    }

}

 
 
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