Construct a JButton using Array with Event Listener

Output:

Code:

/**
 * File: arrayJButton.java
 * Tiltle: Construct a JButton using Array with Event Listener
 * 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 arrayJButton extends JFrame {
	
	//Initializing JButton and JPanel
	private JButton button[];
	private JPanel panel;

	//Setting up GUI
    public arrayJButton() {
    	
    	//Setting up the Title of the Window
    	super("Construct a JButton using Array");

    	//Set Size of the Window (WIDTH, LENGTH)
    	setSize(275,200);

    	//Exit Property of the Window
    	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	
    	//Constructing JButton with an array of 5
    	button = new JButton[5];
    	
    	//Constructing JPanel with a GirdLayout of 5 rows and 1 column (Vertical Position)
    	panel = new JPanel();
    	panel.setLayout(new GridLayout(button.length,1));

    	//Constructing all 5 JButtons using "for loop"
    	for(int count=0; count<button.length; count++) {
    		button[count] = new JButton("Button "+(count+1));
    		panel.add(button[count]);
    	}

    	//Setting up the container ready for the components to be added.
    	Container pane = getContentPane();
    	setContentPane(pane);
    	
    	//Implemeting Even-Listener on JButton's reference "button[0]" using ActionListener
		button[0].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 1 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[1]" using ActionListener
		button[1].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 2 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[2]" using ActionListener
		button[2].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 3 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[3]" using ActionListener
		button[3].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 4 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[4]" using ActionListener
		button[4].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 5 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 JPanel to the container
    	pane.add(panel);

    	/**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) {
    	arrayJButton arjb = new arrayJButton();
	}
}

Important Part of the Program:

//Constructing JButton with an array of 5
    	button = new JButton[5];
    	
    	//Constructing JPanel with a GirdLayout of 5 rows and 1 column (Vertical Position)
    	panel = new JPanel();
    	panel.setLayout(new GridLayout(button.length,1));

    	//Constructing all 5 JButtons using "for loop"
    	for(int count=0; count<button.length; count++) {
    		button[count] = new JButton("Button "+(count+1));
    		panel.add(button[count]);
    	}

//Implemeting Even-Listener on JButton's reference "button[0]" using ActionListener
		button[0].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 1 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[1]" using ActionListener
		button[1].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 2 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[2]" using ActionListener
		button[2].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 3 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[3]" using ActionListener
		button[3].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 4 Event Listener Successfully Implemented";
				
				//Display the message using JOptionPane if the Event is successfully implemented.
				JOptionPane.showMessageDialog(null, message,"Event",JOptionPane.INFORMATION_MESSAGE);
			}
		}
		);
		
		//Implemeting Even-Listener on JButton's reference "button[4]" using ActionListener
		button[4].addActionListener(
		new ActionListener() {
			
			//Handle JButton event if mouse is clicked.
			public void actionPerformed(ActionEvent event) {
				
				//Message to be displayed after the button is clicked.
				String message = "Button 5 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