ButtonListener.java Source code

Introduction

Here is the source code for ButtonListener.java

Source

import java.awt.BorderLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

class ButtonListener implements ActionListener {
    public void actionPerformed(ActionEvent ae) {
        Toolkit.getDefaultToolkit().beep();

    }
}

public class UseActionListener {

    public static void main(String[] a) {
        JFrame frame = new JFrame("Popup JComboBox");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JButton source = new JButton("Ring the bell!");
        source.addActionListener(new ButtonListener());
        frame.add(source, BorderLayout.SOUTH);

        source.addActionListener(new ButtonListener());

        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}