Random Circles Problem

Hi,

The code below displays random circles continously in an endless loop flickering on screen.
The problem is that i don't wan't them to loop endlessly; I just want to display 6 - 10 circles of different sizes (random sizes), positioned randomly on screen.

So in summary
1. Random number of circles
2. of Random sizes
3. displayed at random positions on screen.

Please can som1 help
Thanx in advance.

Rocky.

The Code ------------------------------------------------------------------

import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
public class DrawCircle extends Applet implements Runnable
{
      private Thread th;
      int radius = 0;
      int x=0, y=0;
      // double buffering
      private Image dbImage;
      private Graphics dbg;
      
      public void init() {
            setBackground (Color.black);
            x =0;
            y = 0;
            radius = 0;
      }
      
            public void start ()
      {
            th = new Thread(this);
            th.start ();
      }
      
      public void stop()
      {
            th.stop();
      }
      
      public void destroy()
      {
            th.stop();
      }

      
      public void run ()
      {
            Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
            while (true)
            {
                  
                  repaint();
                  
                  try
                  {
                        Thread.sleep(10);
                  }
                  catch (InterruptedException ex)
                  {
                        // do nothing
                  }
                  
                  Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
            }
      }
      
      
      public void update (Graphics g)
      {
            if (dbImage == null)
            {
                  dbImage = createImage (this.getSize().width, this.getSize().height);
                  dbg = dbImage.getGraphics ();
            }
            
            dbg.setColor (getBackground ());
            dbg.fillRect (0, 0, this.getSize().width, this.getSize().height);
            
            dbg.setColor (getForeground());
            paint (dbg);
            
            g.drawImage (dbImage, 0, 0, this);
            
      }
      
      public void paint(Graphics g) {
            
            for (int i=0; i < 15; i = i + 3) {
                  
                  x = (int) (Math.random()*300); // width of applet
                  y = (int) (Math.random()*300); // height
                  radius = (int) (Math.random()*10 + 15);
                  
                  drawCircle(g,x,y,radius);
                  
            }
      }
      
      private void drawCircle(Graphics g, int x, int y, int r) {
            g.setColor(Color.red);
            g.fillOval(x-r, y-r, 2*r, 2*r);
      }
      
}