AppletApp_不太清楚.

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
public class AppletApp extends Applet {
 public static void main(String args[]) {
  Frame frame=new Frame("Application");
  //創建本類(Applet)的一個實例
  AppletApp app=new AppletApp();
  frame.add("Center",app);
  frame.setSize(200,200);
  frame.setVisible(true);
  //爲窗口事件註冊監聽程序
  frame.addWindowListener(new WindowControl(app));
  //調用Applet的方法
  app.init();
  app.start();
 }//main()方法結束
 public void paint(Graphics g) {
  g.drawString("Hello World", 25, 25);
 }
 public void destroy() {
  System.exit(0);
 }
}
//監聽窗口事件的類
class WindowControl extends WindowAdapter {
 Applet c;
 public WindowControl(Applet c) {
  this.c=c;
 }
 public void windowsClosing(WindowEvent e) {
  c.destroy();
 }
}