animapplet.java

超简单的线程控制自动播放幻灯片小程序,供初学者.

//AnimApplet.java
import java.applet.*;
import java.awt.*;
public class AnimApplet extends Applet implements Runnable 
{Image[] images = new Image[3];
 int frame = 0;
 volatile Thread thread;
 public void init() 
 {for(int i=0;i<3;i++)
  images[i] = getImage(getDocumentBase(), "pic"+i+".jpg");
 }
 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) {
                        }
 }
}