//file: NoisyButton.javaimport java.applet.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class NoisyButton extends JFrame {  public NoisyButton(final AudioClip sound) {    // set up the frame    setTitle("NoisyButton");    addWindowListener(new WindowAdapter(  ) {      public void windowClosing(WindowEvent e) { System.exit(0); }    });    setSize(200, 200);    setLocation(100, 100);    // set up the button    JButton button = new JButton("Woof!");    button.addActionListener(new ActionListener(  ) {      public void actionPerformed(ActionEvent e) { sound.play(  ); }    });    getContentPane(  ).setBackground(Color.pink);    getContentPane().setLayout(new GridBagLayout(  ));    getContentPane(  ).add(button);    setVisible(true);  }  public static void main(String[] args) throws Exception {    java.io.File file = new java.io.File("bark.aiff");    AudioClip sound = Applet.newAudioClip(file.toURL(  ));    new NoisyButton(sound);  }}