Java Program executing on foreign PC

Hello,
I have the following Question: I have written a Project in Eclipse called my_prog which is containing the default package and 2 other packages (p_client, p_server)
The "Runner-Class" with the main method is in the default package
I can execute it in Eclipse or by "java Runner"
That is not very professional in my mind... If I want to give the Program to a client, he won't start Eclipse to execute the Program.
I think I need the Java VM on a foreign PC (is it the Rontime Environment which I can download???)
How can I make executable JAR-Files??? Who executes the JAR-File and how can I set that it is the Runner.java which contains the main Method?
Which posibilities do I have to make my Program run on a foreign PC?????
Thanks
Vince

You can use javaw in a batch file.
This thread explains how to use it.
http://forum.java.sun.com/thread.jsp?forum=54&thread=240271

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