As you see from the above subject
How can I add some Jar plugin to the run-time class-path in Netbeans which will be launched upon clicking “run file” on the Applet class file, from within the NetBeans environment?
I mean that the result will be like running the following HTML code with my jar file:
<HTML>
<BODY>
<APPLET
archive="MyGame.jar,mp3plugin.jar"
code="GUI.JPanelGameApplet"
width=800
height=580>
</APPLET>
</P>
</BODY>
</HTML>
Thanks
In your Projects view right click on Libraries, and then click on Add Jar/Folder…