ButtonListener.java Source code

Introduction

Here is the source code for ButtonListener.java

Source

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

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

class ButtonListener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        JButton o = (JButton) e.getSource();
        String label = o.getText();
        System.out.println(label + " button clicked");
    }
}

public class MultipleSources {
    public static void main(String[] args) {
        JPanel panel = new JPanel();

        JButton close = new JButton("Close");
        close.addActionListener(new ButtonListener());

        JButton open = new JButton("Open");
        open.addActionListener(new ButtonListener());

        JButton find = new JButton("Find");
        find.addActionListener(new ButtonListener());

        JButton save = new JButton("Save");
        save.addActionListener(new ButtonListener());

        panel.add(close);
        panel.add(open);
        panel.add(find);
        panel.add(save);
        JFrame f = new JFrame();
        f.add(panel);
        f.setSize(400, 300);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
}