Steps to apply CardLayout

1) Create a Panel(named: cardPanel) and set its layout to CardLayout.
2) Add another Panels(named: firstP, secondP, thirdP) to cardPanel as a Card. Give unique name to each panel.
3) Call CardLayout.show(cardPanel, “name of card”); to make desired card visible.

Program:

import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;

public class CardLayoutDemo extends Applet implements ActionListener
{
  Panel cardPanel;        
  Panel firstP, secondP, thirdP;  
  Panel buttonP;                  
  Button first, second, third;    
  CardLayout ourLayout;           
  
  public void init()
  {
    cardPanel = new Panel();
    ourLayout = new CardLayout();    
    cardPanel.setLayout (ourLayout);
	
    firstP = new Panel();
    firstP.setBackground(Color.blue);
    
    secondP = new Panel();
    secondP.setBackground(Color.yellow);
    
    thirdP = new Panel();
    thirdP.setBackground(Color.green);
    
    first = new Button("First");
    first.addActionListener(this);
    
    second = new Button("Second");
    second.addActionListener(this);
    
    third = new Button("Third");
    third.addActionListener(this);
    
    buttonP = new Panel();   // Panel's default Layout manager is FlowLayout
    buttonP.add(first);
    buttonP.add(second);
    buttonP.add(third);
    
    this.setLayout(new BorderLayout());
    this.add(buttonP, BorderLayout.SOUTH);
    this.add(cardPanel, BorderLayout.CENTER);
    
    cardPanel.add(firstP, "First");     //blue
    cardPanel.add(secondP, "Second");   //yellow
    cardPanel.add(thirdP, "Third");     //green
    
  }
  
  
  public void actionPerformed(ActionEvent e)
  {
    if (e.getSource() == first)
      ourLayout.show(cardPanel, "First");
      
    if (e.getSource() == second)
      ourLayout.show(cardPanel, "Second");
      
    if (e.getSource() == third)
      ourLayout.show(cardPanel, "Third");
  }
}

/*
<applet code="CardLayoutDemo" width="500" height="500"></applet>
*/

Output:

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