import java.awt.*;
import java.applet.Applet;
import java.lang.*;

public class ThreadApplet extends Applet implements Runnable {
    Thread kicker = null;

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

    public void stop() {
        if ( kicker != null ) {
           kicker.stop();
           kicker = null;
        }
    }

    public void paint(Graphics g) {
        int i, x, y, red, green, blue;
        Color c;
        for ( i = 1; i <= 1000; i++ ){
            x = ( int )( Math.random() * 200 );
            y = ( int )( Math.random() * 200 );
            red = ( int )( Math.random() * 255 );
            green = ( int )( Math.random() * 255 );
            blue = ( int )( Math.random() * 255 );
            c = new Color( red, green, blue );
            g.setColor( c );
            g.fillRect( x, y, 20, 20 );
        }
    }

    public void run() {
         boolean loop = true;
         while( loop ) { 
             repaint();
             try {
                Thread.sleep( 1000 );
             } catch ( InterruptedException e ){}
         }
    }
}