framecardlayout.java

Java讲义与实例

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class frameCardlayout extends JFrame{
    private JPanel jpanel1;
    private CardLayout c1;
    private JButton jButton1=new JButton("Layer1");
    private JButton jButton2=new JButton("Layer2");
    private JButton jButton3=new JButton("Layer3");
    public frameCardlayout(){
        super("frameCardlayout");
        setSize(300,120);
        jpanel1=new JPanel();
        c1=new CardLayout();
        jpanel1.setLayout(c1);
        jpanel1.add(jButton1,"First Layer");
        jpanel1.add(jButton2,"Second Layer");
        jpanel1.add(jButton3,"Third Layer");
        c1.show(jpanel1,"Second Layer");
        this.setContentPane(jpanel1);
        
        }
    public static void main(String arg[]){
        frameCardlayout fg1=new frameCardlayout();
        fg1.show();
         fg1.addWindowListener(new WindowAdapter(){
        public void windowClosing(WindowEvent e){
            System.exit(0);
            }
        });
        }
    }