?? framecardlayout.java
字號(hào):
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);
}
});
}
}
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