Java Applet Help

[Dion]

Forgive me, I am new to this...
How do I insert this applet (seen below)into my web page to get it to work?
Are there variables I need to fill in?
Is there other code to insert to get this code to work?
Any help would be greatly appreciated. Thanks
---------------------
import java.applet.AudioClip;
import java.awt.Button;

public class AudioClipPlay extends java.applet.Applet {
AudioClip audioClip;
Button play, loop, stop;

// Applet role
public void init() {
// Get sound.
audioClip = getAudioClip( getCodeBase(), "dong.au" );

// Create GUI.
add( play = new Button( "play" ) );
add( loop = new Button( "loop" ) );
add( stop = new Button( "stop" ) );
}

// Component role (1.02 event model)
public boolean handleEvent( Event event ) {
if ( event.target == play ) {
audioClip.play();
return true;
}
if ( event.target == loop ) {
audioClip.loop();
return true;
}
if ( event.target == stop ) {
audioClip.stop();
return true;
}
return super.handleEvent( event );
}
}
--------------------------------

[moospot]

Can I ask where you got this code from? I thought you had to compile Java code before you could run it on a web page?

[Marshall]

There are four basic steps required to compile a Java applet and include it in an HTML document.

1. Place the source code for the Java applet in a separate file with the same name as the class and the `.java' file extension. In your case you would name this source file `AudioClipPlay.java'.

2. Compile the source file using the `javac' utility which comes as part of the Java System Development Kit [1].

javac AudioClipPlay.java

Assuming you recieve no error messages while compiling and the AudioClipPlay.class file is created...

3. Place the AudioClipPlay.class file in the same Web-accessible directory as your HTML code.

4. Add an <applet> parameter within your HTML document to load the class file.

<applet code="AudioClipPlay.class" width="100" height="100"></applet>

A good tutorial covering Java applets can be found @ http://java.sun.com/docs/books/tutor...let/index.html


[1] If you do not currently have the Java System Development Kit (SDK) installed on your system you can download the newest version from http://java.sun.com/j2se/. After installation you'll want to place the `$JAVA_HOME/bin' directory in your system PATH, where `$JAVA_HOME' is replaced with the directory into which the SDK was installed. By doing this all of the binary executables located in the /bin directory, including the `javac' utility, will be accessible from any directory on your system.

To perminantly modify your system PATH settings...

On MS Windows 9x/2000:
- Edit the c:\autoexec.bat file and add the following parameter on a new line at the end:

SET PATH=%PATH%;$JAVA_HOME\bin

A system restart is required for these changes to take effect.

On MS Windows XP:
- Go `Start Menu>Settings>Control Panel>System Properties>Environment Variables' and edit the PATH value by adding the following value at the end of the existing string:

<existing stuff>;$JAVA_HOME\bin

On most Unix/Linux systems:
- If you have superuser privledges, edit the /etc/profile file and modify the existing PATH value by adding the following string at the end:

<existing stuff>:$JAVA_HOME/bin

- If you are not superuser edit your ~/.profile file by adding the following line at the end:

export PATH="${PATH}:$JAVA_HOME/bin"

Remember in all cases to replace `$JAVA_HOME' with your SDK installation directory.

To compile your class file after completing the above installation you'd open a Console window (on MS Windows) or a shell session (on *nix) and use the `cd' command to change to the directory in which your .java source file is located. You can then execute the javac command as shown in step 2.


- Marshall