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In this article, we will show you how to make an applet play an audio file of .wav format, using -

• The play() method of Applet class.
• The getAudioClip() method of Applet class in combination with AudioClip interface.

Note : These methods don't play an audio file of .mp3 format.

Playing an audio file in our applet using play() method of Applet class

Playing a music file in .wav format using play() method.

//Evening handling in an applet 

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

/*
<applet  code="Applet12" width=400 height=350>
</applet>
*/

public class Applet12 extends Applet implements ActionListener
{
Button b1;

public void init()
{
System.out.println("initializing an applet");
System.out.println("The full path to our applet file : " + getDocumentBase());	//getDocumentBase() gives URL object
System.out.println("Directory in which our applet file is located : " + getCodeBase());	//getCodeBase() gives URL object


b1 = new Button("Play");
add(b1);

b1.addActionListener(this);


}

public void actionPerformed(ActionEvent ae)
{
if(ae.getActionCommand().equals("Play"))
play(getDocumentBase(),"Acoustic Guitar.wav"); //playing a song(.wav format) from the same directory in which applet code file is located
}


public void paint(Graphics g)
{
g.drawString("Click on the play button to play the music", 80,80);
showStatus("Applet playing audio(.wav file)");
}
}

Output-

In order to run our applet using appletviewer, type the following command at command prompt-

appletviewer Applet12.java

Where Applet12.java is the name of java file that contains the code of an applet.

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Playing an audio file in our applet using getAudioClip() method of Applet class

In the upcoming code, we are calling a method getAudioClip() of Applet class, which gives us an object of type AudioClip. Through this object, we could use the three method of AudioClip interface -

play(), to play the .wav audio file.

loop(), to play the .wav audio file in a loop.

stop(), to stop the .wav audio file being played.

Note : play() method of AudioClip class doesn't play audio file in .mp3 format.

//Evening handling in an applet 

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

/*
<applet  code="Applet13" width=400 height=350>
</applet>
*/

public class Applet13 extends Applet implements ActionListener
{
Button b1, b2, b3;
AudioClip ac;

public void init()
{
System.out.println("initializing an applet");
System.out.println("The full path to our applet file : " + getDocumentBase());	//getDocumentBase() gives URL object
System.out.println("Directory in which our applet file is located : " + getCodeBase());	//getCodeBase() gives URL object


b1 = new Button("Play");
add(b1);
b2 = new Button("Loop");
add(b2);
b3 = new Button("Stop");
add(b3);

b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);


}

public void actionPerformed(ActionEvent ae)
{
if(ae.getActionCommand().equals("Play"))
{
ac = getAudioClip(getDocumentBase(),"Acoustic Guitar.wav"); //playing a song(.wav format) from the same directory in which applet code file is located
ac.play();
}


if(ae.getActionCommand().equals("Loop"))
{
ac = getAudioClip(getDocumentBase(),"Acoustic Guitar.wav"); //playing a song(.wav format) from the same directory in which applet code file is located
ac.loop();
}

if(ae.getActionCommand().equals("Stop"))
{
ac = getAudioClip(getDocumentBase(),"Acoustic Guitar.wav"); //playing a song(.wav format) from the same directory in which applet code file is located
ac.stop();
}
}


public void paint(Graphics g)
{
g.drawString("Click on the button to play,loop or stop the music", 80,80);
showStatus("Applet playing audio(.wav file)");
}
}

Output-

In order to run our applet using appletviewer, type the following command at command prompt-

appletviewer Applet13.java

Where Applet13.java is the name of java file that contains the code of an applet.

• After we click on the play button, the music file is played.
• After we click on the loop button, the music file is played in the loop.
• After we click on the stop button, the music file being played is stopped.

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