Add Event Listener on JButton

Output:

Code:

/**
 * File: jbuttonAddEvent.java
 * Tiltle: Add Event Listener on JButton
 * Author: http://java-program-sample.blogspot.com/
 */

//Java Core Package
import javax.swing.*;
//Java Extension Package
import java.awt.*;
import java.awt.event.*;

public class jbuttonAddEvent extends JFrame {
	
	//Initializing JButton
	private JButton button;

	//Setting up GUI
    public jbuttonAddEvent() {
    	
    	//Setting up the Title of the Window
    	super("Add Event Listener on JButton");

    	//Set Size of the Window (WIDTH, LENGTH)
    	setSize(300,100);

    	//Exit Property of the Window
    	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    	//Constructing JButton
    	button = new JButton("Click Me for my First Event");

    	//Setting up the container ready for the components to be added.
    	Container pane = getContentPane();
    	setContentPane(pane);
    	
    	//Setting up the container layout
    	FlowLayout flow = new FlowLayout(FlowLayout.CENTER);
    	pane.setLayout(flow);
    	
    	//Implemeting Even-Listener on JButton using ActionListener
		button.addActionListener(
		new ActionListener() {
			
			//Handle JButton event if Enter key is pressed or if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is pressed or clicked.
				String message = "Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);

    	//Adding the JButton component to the container
    	pane.add(button);

    	/**Set all the Components Visible.
    	 * If it is set to "false", the components in the container will not be visible.
    	 */
    	setVisible(true);
    }
    
	//Main Method
    public static void main (String[] args) {
    	jbuttonAddEvent jbe = new jbuttonAddEvent();
	}
}

Important Part of the Program:

//Implemeting Even-Listener on JButton using ActionListener
		button.addActionListener(
		new ActionListener() {
			
			//Handle JButton event if Enter key is pressed or if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is pressed or clicked.
				String message = "Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);

Posted in: JButton