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Animating an Array of Images in an Applet

This is the simplest applet to animate an array of images. In practice, you should use double-buffering (which this example does not use) to eliminate ``flickering.''

 import java.applet.*;
 import java.awt.*;
     
 public class AnimApplet extends Applet 
                        implements Runnable {
   Image[] images = new Image[2];
   int frame = 0;
   volatile Thread thread;
     
   public void init() {
     images[0] = getImage(getDocumentBase(), 
       "http://hostname/image0.gif");
     
     images[1] = getImage(getDocumentBase(), 
       "http://hostname/image1.gif");
   }
   public void start() {
     (thread = new Thread(this)).start();
   }
   public void stop() {
     thread = null;
   }
   public void paint(Graphics g) {
     g.drawImage(images[frame], 0, 0, this);
   }
   public void run() {
     int delay = 1000;    // 1 second
     try {
       while (thread == Thread.currentThread()) {
         frame = (frame+1)%images.length;
         repaint();
         Thread.sleep(delay);
        }
     } catch (Exception e) {
       }
   }
 }