Please i need help with sound application! please?

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
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

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 );