Java CardLayout
Java CardLayout
A Card layout is a group of containers or components that are displayed one at a time.Each container in the group ia called a card.
Constructors of CardLayout class
| Type of Constructor | Constructor Description |
|---|---|
| CardLayout() | It creates a card layout with zero horizontal and vertical gap. |
| CardLayout(int hgap, int vgap) | It creates a card layout with the given horizontal and vertical gap. |
Basic Methods of CardLayout class :
| Method Name | Description |
|---|---|
| public void first(Container parent) | This method is used to flip to the first card of the given container. |
| public void last(Container parent) | This method is is used to flip to the last card of the given container. |
| public void next(Container parent) | This method is used to flip to the next card of the given container. |
| public void previous(Container parent) | This method is used to flip to the previous card of the given container. |
| public void show(Container parent, String name) | This method is used to flip to the specified card with the given name. |
| getVgap() | This method is used to get the vertical gap between components. |
| getHgap() | This method is used to get the horizontal gap between components. |
Example of CardLayout with ActionListener
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
{
CardLayout card;
JButton b1, b2, b3;
Container c1;
CardLayoutDemo()
{
c1= getContentPane();
card = new CardLayout(40, 30);
//create CardLayout object with 40 hor space and 30 ver space
c1.setLayout(card);
b1 = new JButton("First Card");
b2 = new JButton("Second Card");
b3 = new JButton("Third Card");
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
c1.add("1", b1);
c1.add("2", b2);
c1.add("3", b3);
setTitle("CardLayout Demo");
setSize(300,300);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void actionPerformed(ActionEvent e)
{
card.next(c1);
}
}
public class CardLayoutEx
{
public static void main(String[] args)
{
CardLayoutDemo ex=new CardLayoutDemo();
}
}
Output
The code above will display :
