stretch1.java

nanjing university cs 的java课件。 对新手很有用。付课件中源码。

import java.awt.*;
import java.awt.event.*;

public class Stretch1 extends Frame{
	public Stretch1(){
		add(new Button("East"), BorderLayout.EAST);
		add(new Label("West"), BorderLayout.WEST);
		add(new TextField("North"), BorderLayout.NORTH);
		add(new Checkbox("South"), BorderLayout.SOUTH);
		add(new Button("CENTER"));
		this.setSize(400,400);
		this.setVisible(true);
		Terminator t = new Terminator();
		this.addWindowListener(t);
	}
	
	public static void main(String[] args){
		Stretch1 s = new  Stretch1();
	}
}

class Terminator implements WindowListener {
		public void windowClosing ( WindowEvent e) {
			System.out.println(e.getSource().getClass().getName());
			System.exit(0);
		}
		public void windowOpened(WindowEvent e){}
		public void windowIconified(WindowEvent e){}
		public void windowDeiconified(WindowEvent e){}
		public void windowClosed(WindowEvent e){}
		public void windowActivated(WindowEvent e){}
		public void windowDeactivated(WindowEvent e){}
}