Create A Media Player in Java Or Play Files

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.media.*;

public class MediaPlayerDemo extends JFrame
{
private Player player;
private File file;

public MediaPlayerDemo()
{
super( "Java Media Player" );

JButton openFile = new JButton( "Open file (Browse) to play" );
openFile.addActionListener( new ActionListener()
{
public void actionPerformed( ActionEvent e )
{
openFile();
createPlayer();
}
});
getContentPane().add( openFile, BorderLayout.NORTH );

setSize( 100, 200 );
show();
}

private void openFile()
{
JFileChooser fileChooser = new JFileChooser();

fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
int result = fileChooser.showOpenDialog( this );

if ( result == JFileChooser.CANCEL_OPTION )
file = null;
else
file = fileChooser.getSelectedFile();
}

private void createPlayer()
{
if ( file == null )
return;

removePreviousPlayer();

try
{
player = Manager.createPlayer( file.toURL() );
player.addControllerListener( new EventHandler() );
player.start();
}
catch ( Exception e )
{
JOptionPane.showMessageDialog( this, "Invalid file or location", "Error loading file",
JOptionPane.ERROR_MESSAGE );
}
}

private void removePreviousPlayer()
{
if ( player == null )
return;

player.close();

Component visual = player.getVisualComponent();
Component control = player.getControlPanelComponent();

Container c = getContentPane();

if ( visual != null )
c.remove( visual );

if ( control != null )
c.remove( control );
}

public static void main(String args[])
{
MediaPlayerDemo app = new MediaPlayerDemo();

app.addWindowListener( new WindowAdapter()
{
public void windowClosing( WindowEvent e )
{
System.exit(0);
}
}
}

private class EventHandler implements ControllerListener
{
public void controllerUpdate( ControllerEvent e )
{
if ( e instanceof RealizeCompleteEvent )
{
Container c = getContentPane();

Component visualComponent = player.getVisualComponent();

if ( visualComponent != null )
c.add( visualComponent, BorderLayout.CENTER );

Component controlsComponent = player.getControlPanelComponent();

if ( controlsComponent != null )
c.add( controlsComponent, BorderLayout.SOUTH );

c.doLayout();
}
}
}
}