// // Simple creation of a "Push Me" button which prints "Push me" in // the console window // import javax.swing.*; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; public class PushMeButtonAL extends JPanel implements ActionListener{ public PushMeButtonAL(){ // Create button labeled "push me" JButton PMButton = new JButton ("Push Me"); PMButton.addActionListener(this); add(PMButton); } /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Make sure we have nice window decorations. JFrame.setDefaultLookAndFeelDecorated(false); //Create and set up the window. JFrame frame = new JFrame("Button Demo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // set up content pane PushMeButtonAL newContentPane = new PushMeButtonAL(); newContentPane.setOpaque(true); newContentPane.setBorder( BorderFactory.createEmptyBorder(20,20,20,20)); //T,L,B,R frame.setContentPane(newContentPane); //Display the window. frame.pack(); frame.setVisible(true); } public void actionPerformed(ActionEvent e){ System.out.println("Push Me!"); } 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(); } }); } }