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How to be sure only an instance?

Along huang
Ranch Hand

Joined: Feb 09, 2004
Posts: 72
hi, everybody.

My assignment is nearly completed. After packaging all files into runme.jar,
I expect only one instance of the runme.jar in a machine at one time. I look
many reference books, but can't find any related information.

Do anyone have a good idea for me?

best regards

SCJP1.4 SCJD 2<br />SCEA(In progressing)
mike acre
Ranch Hand

Joined: Sep 23, 2003
Posts: 197

I agree. Here's the link:
subject: How to be sure only an instance?
It's not a secret anymore!