mycardlayout.java

这个是JAVA程序基础书上第六章处理异常源代码

import java.awt.*;
import java.awt.event.*;
public class MyCardLayout extends MouseAdapter{
	private Frame f;
	private Panel p1, p2, p3, p4, p5, p6;
	private Label l1, l2, l3, l4, l5, l6;
	private CardLayout myCard;
	public static void main(String[] args){
		MyCardLayout that = new MyCardLayout();
		that.go();
	}
	private void go(){
		f = new Frame("CardLayout Example !");
		myCard = new CardLayout();
		f.setLayout(myCard);
		p1 = new Panel();  p2 = new Panel();  p3 = new Panel();
		p4 = new Panel();  p5 = new Panel();  p6 = new Panel();
		l1 = new Label("This is the first Card");
		l2 = new Label("This is the second Card");
		l3 = new Label("This is the third Card");
		l4 = new Label("This is the fourth Card");
		l5 = new Label("This is the fifth Card");
		l6 = new Label("This is the sixth Card");
		p1.add(l1);  p1.setBackground(Color.yellow);  p1.addMouseListener(this);
		p2.add(l2);  p2.setBackground(Color.red);     p2.addMouseListener(this);
		p3.add(l3);  p3.setBackground(Color.green);   p3.addMouseListener(this);
		p4.add(l4);  p4.setBackground(Color.magenta); p4.addMouseListener(this); 
		p5.add(l5);  p5.setBackground(Color.white);   p5.addMouseListener(this);
		p6.add(l6);  p6.setBackground(Color.cyan);    p6.addMouseListener(this);
		f.add(p1, "First");
		f.add(p2, "Second");
		f.add(p3, "Third");
		f.add(p4, "Fourth");
		f.add(p5, "Fifth");
		f.add(p6, "Sixth");
		myCard.show(f, "First");
		f.setSize(300, 200);
		f.show();
	}
	public void mouseClicked(MouseEvent e){
		myCard.next(f);
	}
}