How do i create an executable jar?

I have built a GUI, and want to make it executable. I have tried compiling it to a jar, but when i double click this nothing happens. I even added Main-Class to the manifest file but still no luck.
any help would be appreciated, or a link to a good tutorial. I have already tried the sun tutorial, but it still doesnt work.
Thanks
Ben

I got it working :D
jar -cfm TestJar.jar manifest.txt GUI.class GUI$1.class ./org/gui/*.class ./info/clearthought/layout/*.class
java -jar TestJar.jar
This created the .jar. I will experiment with Class-Name: later, atleast i have something to show now.
Thanks to everyone for their help on this matter
Ben
edit:
just changed the manifest file to include,
Class-Path: JCalendar4.jar TableLayout.jar
Worked a dream..... thanks everyone i think i have a pretty good grasp on how to create jars now. Just need to learn now how to create jnlp files :D
Message was edited by:
CyborgAvenger

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How do I create an executable JAR File ?

Hi,
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- don't forget to set the environment CLASSPATH correctly
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Creating an executable JAR

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How do i create an executable jar?

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