AnimApplet

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

public class  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) {
        }
    }
}

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