JAVA - BUTTON JOptionPane

 

/*

 * To change this license header, choose License Headers in Project Properties.

 * To change this template file, choose Tools | Templates

 * and open the template in the editor.

 */

package buttonabinner;

import javax.swing.*;    

import java.awt.*;

import java.awt.event.*; 

public class ButtonABinner extends JApplet

{

public void init()

{

Container contentPane = getContentPane ();

contentPane.setLayout(new FlowLayout());

JButton btnA = new JButton("A");

JButton btnB = new JButton("B");

// Instead of passing this to the button's listener

// registration method, pass a new instance of the

//appropriate listener class

 

//btnA.addActionListener(this);

//btnB.addActionListener(this);

//  ==>

btnA.addActionListener(new btnListenerA());

btnB.addActionListener(new btnListenerB());

contentPane.add(btnA); 

contentPane.add(btnB); 

} 

class btnListenerA implements ActionListener

{

public void actionPerformed(ActionEvent event)

{

String title = "Message";  

String message = "Hello from the Swing button A.";

JOptionPane.showMessageDialog(null, message, title,

  JOptionPane.INFORMATION_MESSAGE);

}

}

class btnListenerB implements ActionListener

{

public void actionPerformed(ActionEvent event)

{

String title = "Message";  

String message = "Hello from the Swing button B.";

JOptionPane.showMessageDialog(null, message, title,

  JOptionPane.INFORMATION_MESSAGE);

}

}

}