import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class MyButtonApplication implements ActionListener {
    
    public Component createComponents() {
        JButton button1 = new JButton("Button 1");
        button1.setMnemonic(KeyEvent.VK_B);
        button1.addActionListener(this);
        button1.setActionCommand("B1");

        JButton button2 = new JButton("Button 2");
        button2.setMnemonic(KeyEvent.VK_U);
        button2.addActionListener(this);
        button2.setActionCommand("B2");

        JButton button3 = new JButton("Quit");
        button3.setMnemonic(KeyEvent.VK_Q);
        button3.addActionListener(this);
        button3.setActionCommand("QUIT");

        /*
         * An easy way to put space between a top-level container
         * and its contents is to put the contents in a JPanel
         * that has an "empty" border.
         */
        JPanel pane = new JPanel();   // uses flow layout by default
        pane.add(button1);
        pane.add(button2);
        pane.add(button3);
        pane.setBorder(BorderFactory.createEmptyBorder(
                                        30, //top
                                        30, //left
                                        10, //bottom
                                        30) //right
                                        );

        return pane;
    }

    public void actionPerformed(ActionEvent e) {
    	if (e.getActionCommand().equals("B1"))
    		System.out.println("Button 1");
    	if (e.getActionCommand().equals("B2"))
    		System.out.println("Button 2");
    	if (e.getActionCommand().equals("QUIT"))
    		System.exit(0);
    }

    /**
     * Create the GUI and show it  For thread safety, this method should be 
     * invoked from the event-dispatching thread.
     */
    private static void createAndShowGUI() {
        //Set the look and feel.
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception e) {
            System.err.println("Couldn't get system look and feel for some reason.");
            System.err.println("Using the default look and feel.");
            e.printStackTrace();
        }

        //Make sure we have nice window decorations.
        JFrame.setDefaultLookAndFeelDecorated(true);

        //Create and set up the window.
        JFrame frame = new JFrame("MyButtonApplication");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        MyButtonApplication app = new MyButtonApplication();
        Component contents = app.createComponents();
        frame.getContentPane().add(contents);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}