JAVA SOUND APPLICATION not applet.....help needed.....cheers

Question

hey there people heres the deal I need to complete this before 5 today but im completely stumped...we have to make a sound file player with a swing interface I have it playing(kind of!) but where now...I would be forever in your debt as my masters degree hangs in the balance! de de duhhhh! cheers
iT WORKS ALRIGHT JUST NEED STOP PAUSE BUTTON FUNCTION..........
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.event.*;
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.*;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
public class AudioPlayer extends JFrame implements ActionListener, ChangeListener{
boolean playing;
boolean looping;
String filename = File.separator+"tmp";
File selFile;
Clip clip;
JFileChooser fc = new JFileChooser();
JButton btnOpen = new JButton("Open");
JButton btnPlay = new JButton("Play");
JButton btnStop = new JButton("Stop");
JButton btnPause = new JButton("Pause");
JButton btnLoop = new JButton("Loop");
JSlider volume = new JSlider(SwingConstants.HORIZONTAL,0,100,0);
JSlider panning = new JSlider(SwingConstants.HORIZONTAL,0,100,0);
public AudioPlayer(){
Container contentPane = getContentPane();
contentPane.setLayout(new FlowLayout());
contentPane.add(btnOpen);btnPlay.addActionListener(this);
contentPane.add(btnPlay);btnPlay.addActionListener(this);
contentPane.add(btnStop);btnStop.addActionListener(this);
contentPane.add(btnPause);btnPause.addActionListener(this);
contentPane.add(btnLoop);btnLoop.addActionListener(this);
// Show open dialog; this method does not return until the dialog is closed
fc.showOpenDialog(this);
selFile = fc.getSelectedFile();
volume.addChangeListener(this);
panning.addChangeListener(this);
volume.putClientProperty("JSlider.isFilled", Boolean.TRUE);
volume.setPaintTicks(true);volume.setPaintLabels(true);
volume.setMajorTickSpacing(20);volume.setMinorTickSpacing(10);
contentPane.add(volume);
panning.putClientProperty("JSlider.isFilled", Boolean.TRUE);
panning.setPaintTicks(true);panning.setPaintLabels(true);
panning.setMajorTickSpacing(20);panning.setMinorTickSpacing(10);
contentPane.add(panning);
addWindowListener(
new WindowAdapter () {
public void windowClosing(WindowEvent e){
setVisible(false);
public void actionPerformed(ActionEvent e){
int returnVal = JFileChooser.APPROVE_OPTION;
//Handle open file action.
if (e.getSource() == btnOpen)
System.out.println("FA1");
returnVal = fc.showOpenDialog(AudioPlayer.this);
if (returnVal == JFileChooser.APPROVE_OPTION)
{ selFile = fc.getSelectedFile();
//This is where a real application would open the file.
else
if(e.getSource() == btnPlay)
playAudio();
public void stateChanged(ChangeEvent e)
public static void main(String[] args)
AudioPlayer audioPlayer = new AudioPlayer();
audioPlayer.setSize(400,400);
audioPlayer.show();
public void playAudio ()
playing = true;
AudioInputStream audiosource = null;
try
audiosource = AudioSystem.getAudioInputStream(selFile);
System.out.println("here");
//System.out.println(audiosource.getFormat());
DataLine.Info dataLineInfo = new DataLine.Info(Clip.class,audiosource.getFormat());
clip = (Clip)AudioSystem.getLine(dataLineInfo);
clip.open(audiosource);
catch (UnsupportedAudioFileException e)
catch (LineUnavailableException e)
catch (IOException e)
//catch (Exception e) {}
if (looping)
clip.loop(clip.LOOP_CONTINUOUSLY);
else
clip.loop(0);
playing = false;
}

Answer 1

You have not added the actionListener to all the button D'oh
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.event.*;
import javax.sound.sampled.*;
* Description of the Class
*@author rsmazara
*@created 28 February 2003
public class AudioPlayer extends JFrame implements ActionListener, ChangeListener {
File selFile;
JFileChooser fc = new JFileChooser();
JButton btnOpen = new JButton( "Open" );
JButton btnPlay = new JButton( "Play >" );
JButton btnStop = new JButton( "Stop" );
JButton btnPause = new JButton( "Pause ||" );
JCheckBox btnLoop = new JCheckBox( "Loop" );
JSlider volume = new JSlider( SwingConstants.HORIZONTAL, 0, 100, 0 );
JSlider panning = new JSlider( SwingConstants.HORIZONTAL, 0, 100, 0 );
JLabel label = new JLabel( " " );
public AudioPlayer() {
Container contentPane = getContentPane();
contentPane.setLayout( new FlowLayout() );
btnOpen.addActionListener( this );
contentPane.add( btnOpen );
btnPlay.addActionListener( this );
contentPane.add( btnPlay );
btnPlay.addActionListener( this );
contentPane.add( btnStop );
btnStop.addActionListener( this );
contentPane.add( btnPause );
btnPause.addActionListener( this );
contentPane.add( btnLoop );
btnLoop.addActionListener( this );
btnPlay.setEnabled( false );
btnStop.setEnabled( false );
btnPause.setEnabled( false );
// Show open dialog; this method does not return until the dialog is closed
// fc.showOpenDialog( this );
// selFile = fc.getSelectedFile();
volume.addChangeListener( this );
panning.addChangeListener( this );
volume.putClientProperty( "JSlider.isFilled", Boolean.TRUE );
volume.setPaintTicks( true );
volume.setPaintLabels( true );
volume.setMajorTickSpacing( 20 );
volume.setMinorTickSpacing( 10 );
contentPane.add( volume );
panning.putClientProperty( "JSlider.isFilled", Boolean.TRUE );
panning.setPaintTicks( true );
panning.setPaintLabels( true );
panning.setMajorTickSpacing( 20 );
panning.setMinorTickSpacing( 10 );
contentPane.add( panning );
contentPane.add( label );
addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e ) {
setVisible( false );
System.exit( -100 );
public void actionPerformed( ActionEvent e ) {
int returnVal = JFileChooser.APPROVE_OPTION;
//Handle open file action.
System.out.println( e.getActionCommand() );
///open
if ( e.getSource() == btnOpen ) {
System.out.println( "FA1" );
returnVal = fc.showOpenDialog( AudioPlayer.this );
if ( returnVal == JFileChooser.APPROVE_OPTION ) {
selFile = fc.getSelectedFile();
player = new Player( selFile );
label.setText( "File loaded : " + selFile.getAbsolutePath() );
btnPlay.setEnabled( true );
btnStop.setEnabled( false );
btnPause.setEnabled( false );
//This is where a real application would open the file.
} else {
//play
if ( e.getSource() == btnPlay ) {
player.go( btnLoop.isSelected() );
btnPlay.setEnabled( false );
btnStop.setEnabled( true );
btnPause.setEnabled( true );
// playAudio();
// pause
if ( e.getSource() == btnPause ) {
player.pause();
btnPlay.setEnabled( true );
btnStop.setEnabled( true );
btnPause.setEnabled( false );
if ( e.getSource() == btnStop ) {
player.finish();
btnPlay.setEnabled( true );
btnStop.setEnabled( false );
btnPause.setEnabled( false );
public void stateChanged( ChangeEvent e ) {
private Player player = null;
public static void main( String[] args ) {
AudioPlayer audioPlayer = new AudioPlayer();
audioPlayer.setSize( 400, 400 );
audioPlayer.show();
* Description of the Class
*@author rsmazara
*@created 28 February 2003
class Player {
Clip clip;
private java.io.File selectedFile = null;
private boolean looping = false;
public Player( File file ) {
selectedFile = file;
AudioInputStream audiosource = null;
try {
audiosource = AudioSystem.getAudioInputStream( selectedFile );
System.out.println( "here" );
//System.out.println(audiosource.getFormat());
DataLine.Info dataLineInfo = new DataLine.Info( Clip.class, audiosource.getFormat() );
clip = ( Clip ) AudioSystem.getLine( dataLineInfo );
clip.open( audiosource );
} catch ( UnsupportedAudioFileException e1 ) {
e1.printStackTrace();
} catch ( LineUnavailableException e2 ) {
e2.printStackTrace();
} catch ( IOException e3 ) {
e3.printStackTrace();
private boolean work = false;
public void go( boolean loop ) {
looping = loop;
playAudio();
public void finish() {
clip.stop();
public boolean isWorking() {
return clip.isRunning();
long pausePosition = ( long ) 0;
public void pause() {
pausePosition = clip.getMicrosecondPosition();
clip.stop();
public void restart() {
clip.setMicrosecondPosition( pausePosition );
playAudio();
public void loop( boolean loop ) {
looping = loop;
private void playAudio() {
if ( looping ) {
clip.loop( clip.LOOP_CONTINUOUSLY );
} else {
clip.loop( 0 );