import java.applet.Applet;
import java.applet.AppletStub;
import java.awt.Label;
import java.awt.Graphics;
import java.awt.GridLayout;

public class PreLoader extends Applet implements Runnable, AppletStub {
    String appletToLoad;
    Label label;
    Thread appletThread;

    public void init() {
       // This is the applet we want to delay loading
       appletToLoad = getParameter("applet");
       label = new Label("Stay tuned" + appletToLoad);
       add(label);
    }

    public void run(){
       try {
          // Get the class of the real applet
          Class appletClass = Class.forName(appletToLoad);

          // Create an instance of the real applet
         Applet realApplet = (Applet)appletClass.newInstance();

          // Set the stub for the applet
          realApplet.setStub(this);

          // Get rid of the Stay Tuned message
         remove(label);

         // Maximize the applet to the current size
         setLayout(new GridLayout(1, 0));
         add(realApplet);

         // Lets now display the real applet
         realApplet.init();
         realApplet.start();
      }
      catch (Exception ex) {
         // Display an error
         label.setText("Error loading applet.");
      }

      // We need to redraw the screen
      validate();
   }

   public void appletResize(int width, int height) {
         // Transfer the call of AppletResize from the stub to the applet.
        resize(width, height);
   }
}

Listing 2

GraphicsDevice aDevice;
Windows aWindow;
DisplayMode newDisplayMode;
DisplayMode oldDisplayMode = aDevice.getDisplayMode();

try {
       aDevice.setFullScreenWindow(aWindow);
       aDevice.setDisplayMode(newDisplayMode);
       // do rest of work
}
finally {
       aDevice.setDisplayMode(oldDisplayMode);
       aDevice.setFullscreenWindow(null);

Listing 3

public boolean imageUpdate(Image img, int flags, int x, int y, int w, int h) {
          if ((flags & ALLBITS) !=0 {
               repaint();
          }
          else if (flags & (ABORT | ERROR)) != 0) {
               error = true;
               // File was not found so consider displaying placeholder
               repaint();
           }
           return (flags & (ALLBITS | ABORT | ERROR)) == 0;
}

Listing 4

public static void runOnce(String id, final long milliseconds) {
          synchronized(s_queue) { // s_queue is a collection of all events
                if (!s_queue.containsKey(id)) {
                       s_queue.put(token, new Latest());
                }
           }

           final Latest latest = (Latest) s_queue.get(token);
           final long time = System.currentTimeMillis(); // Get current time
           lastest.time = time;

           (new Thread() {public void run() {
                if (milliseconds > 0) {
                    try {Thread.sleep(milliseconds);} // Sleep for a little bit
                    catch (Exception ex) {}
                }
                synchronized(lastest.running) { // Wait until previous finishes
                    if (latest.time != time) // Only run latest
                    return;
                }
             }}).start();
}

private static Hashtable s_queue = new Hashtable();

private static class Latest {
        public long time=0;
        public Object running = new Object();
}