Overview

In this tutorial, we will learn how to use Swing JCheckBox Class to create checkboxes. A checkbox GUI component allows users to turn something on and off.

Swing JCheckBox Class

We can use the Swing JCheckBox class to create checkboxes.
The JCheckBox class inherits all functionality of JToogleButton class. The class implements the Accessible interface. We can create a checkbox with text or with an icon or both.

Java Program

package com.testingdocs.swing.components;

/**********************************************
 * FileName: CheckBoxDemo.java
 * Package : com.testingdocs.swing.components
 * 
 * Java Tutorials - www.TestingDocs.com
 **********************************************/

import java.awt.BorderLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

public class CheckBoxDemo {

    public static void main(String[] args) {
    	//Create a frame instance
        JFrame frame = new JFrame("Swing CheckBox - www.TestingDocs.com");
        // Create a checkbox instance
        JCheckBox chkBox = new JCheckBox("Checkbox Example");
        
        chkBox.addItemListener(
                new ItemListener() {
                    public void itemStateChanged(ItemEvent e) {
                        if (e.getStateChange() == ItemEvent.SELECTED) {
                              	JOptionPane.showMessageDialog(frame,
                                    "CheckBox is checked");
                        } 
                    }
                });
        // Create Panel instance
        JPanel panel = new JPanel();
        panel.add(chkBox);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 200);
        frame.getContentPane().add(panel, BorderLayout.SOUTH);
        frame.setVisible(true);
    }
}

Output

Run the Java application to view the output.