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

import javax.swing.*;

public class CardLayoutExample extends JFrame implements ActionListener{
CardLayout card;
JButton b1,b2,b3;
Container c;
CardLayoutExample(){

c=getContentPane();
card=new CardLayout(40,30);
//create CardLayout object with 40 hor space and 30 ver space
c.setLayout(card);

b1=new JButton("Apple");
b2=new JButton("Boy");
b3=new JButton("Cat");
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);

c.add("a",b1);c.add("b",b2);c.add("c",b3);

}
public void actionPerformed(ActionEvent e) {
card.next(c);
}

public static void main(String[] args) {
CardLayoutExample cl=new CardLayoutExample();
cl.setSize(400,400);
cl.setVisible(true);
cl.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
}