Jar doesn't open for applet :(

Question

Hi all,
I am using jre 1.6.0 and running applet.That is working fine.
But when I double click on jar gives an error "Failed to load Main-class manifest attribute from "path""...
I searched through forum and tutorial and referred below link.
http://forum.java.sun.com/thread.jspa?forumID=421&threadID=303383
But no success!!
in html file:
I use archieve="name.jar"
and I make jar with commandline using
jar cmf name.jar *
What should I change?
Plz Help!!!
Regards,
Palak

Answer 1

Then you want to make an executable jar. You do that by
(1) creating a main() method. That is, a method with the signature:
public static void main(String[] args)(2) create a manifest file in the jar with a "Main-Class" attribute that names the class with the main().
(3) package all your classes and supporting files in the jar file.
That's basically it. Note that none of the requirements include "make an applet". Applets have nothing to do with executable jars. They're completely separate issues.
I generally recommend this practice: write your program so it doesn't assume anything other than a GUI -- it doesn't know whether it's an applet or a standalone application (that could be run in an executable jar). Then create two wrapper classes: one is an applet, and one has a main() method. Both will start up your program. Put them both in your jar file. That way, you can start your program by clicking the jar file (thus invoking the class with the main() method, but ignoring the applet wrapper), or in a web page with an <applet> tag (thus invoking the applet wrapper, but ignoring the class with the main() method). This makes for convenient, flexible deployment. But you don't have to do it this way.