myfirstframe1.java

java语言与面向对象程序设计源程序

import java.awt.*;
import java.awt.event.*;	/* Import components， interfaces， and events */
public class MyFirstFrame1 extends Frame 
             implements ActionListener	/* Class of type Frame and ActionListener */
{ private Button quit = new Button("Quit");	/* Define GUI components as fields */
public MyFirstFrame1()     /* Constructor to initialize frame */
   {  super("Test Window");
      add(quit);
      pack();
      show();	
      quit.addActionListener(this);
   }	/* Register button as action event source and tie it to event handler. 
          Here it is this class itself. */
public void actionPerformed(ActionEvent e)	/* Specify what to do with action events */ 
   {  dispose();
      System.exit(0);                /* Quits program， returns to operating system */
   }	
public static void main(String args[])   	/* Make program executable */ 

   { MyFirstFrame1 mf = new MyFirstFrame1();}
}