Ich habe diesen Code, der WAV-Dateien aus einem Ordner mit Wiedergabe und Stopp wiedergibt. Wie kann ich eine Pause hinzufügen und fortfahren?

 import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 import javax.swing.event.*;
 import java.applet.AudioClip;  
 import java.net.URL;  

public class JukeBox extends JFrame {
  private JComboBox musicCombo;
  private JButton stopButton, playButton;
  private AudioClip[] music;
  private AudioClip current;

  public JukeBox(String title) {
    super(title);
    getContentPane().add(new JukeBoxControls());
  }

  public static void main(String [] args) {
    JukeBox myf = new JukeBox ("WAV COMBOBOX");
    myf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    myf.pack();
    myf.setVisible(true);
  }

  private class JukeBoxControls extends JPanel {
    public JukeBoxControls() {
      URL url1, url2, url3, url4, url5;
      url1 = url2 = url3 = url4 = url5 = null;

      try
      {
         url1 = new URL ("file", "localhost", "beep-01a.wav");
         url2 = new URL ("file", "localhost", "beep-02.wav");
         url3 = new URL ("file", "localhost", "beep-03.wav");
         url4 = new URL ("file", "localhost", "beep-04.wav");
         url5 = new URL ("file", "localhost", "beep-05.wav");
      }
      catch (Exception exception) {}

      music = new AudioClip[7];
      music[0] = null;
      music[1] = JApplet.newAudioClip (url1);
      music[2] = JApplet.newAudioClip (url2);
      music[3] = JApplet.newAudioClip (url3);
      music[4] = JApplet.newAudioClip (url4);
      music[5] = JApplet.newAudioClip (url5);

      JLabel titleLabel = new JLabel ("WAV COMBOBOX");
      titleLabel.setAlignmentX (Component.CENTER_ALIGNMENT);

      String[] musicNames = {"vyberte...", "sound 1",
               "sound 2", "sound 3", "sound 4",
               "sound 5"};

      musicCombo = new JComboBox (musicNames);
      musicCombo.setAlignmentX (Component.CENTER_ALIGNMENT);

      playButton = new JButton ("Play", new ImageIcon ("play.gif"));
      playButton.setBackground (Color.white);
      stopButton = new JButton ("Stop", new ImageIcon ("stop.png"));
      stopButton.setBackground (Color.white);

      JPanel buttons = new JPanel();
      buttons.setLayout (new BoxLayout (buttons, BoxLayout.X_AXIS));
      buttons.add (playButton);
      buttons.add (Box.createRigidArea (new Dimension(5,0)));
      buttons.add (stopButton);

      setPreferredSize (new Dimension (350, 200));
      setLayout (new BoxLayout (this, BoxLayout.Y_AXIS));
      add (Box.createRigidArea (new Dimension(0,5)));
      add (titleLabel);
      add (Box.createRigidArea (new Dimension(0,5)));
      add (musicCombo);
      add (Box.createRigidArea (new Dimension(0,5)));
      add (buttons);
      add (Box.createRigidArea (new Dimension(0,5)));

      musicCombo.addActionListener (new ComboListener());
      stopButton.addActionListener (new ButtonListener());
      playButton.addActionListener (new ButtonListener());

      current = null;
    }
   }

   private class ComboListener implements ActionListener {
      public void actionPerformed (ActionEvent event)
      {
         if (current != null)
            current.stop();

         current = music[musicCombo.getSelectedIndex()];
      }
   }

   private class ButtonListener implements ActionListener {
      public void actionPerformed (ActionEvent event)
      {
         if (current != null)
            current.stop();

         if (event.getSource() == playButton)
            if (current != null)
               current.play();
      }
   }
}