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System.exit(int status)

Steven Zeng
Ranch Hand

Joined: Jan 15, 2002
Posts: 41
Hi, if the status argument of System.exit(int status) is a non-zero number,what does it mean?
As far as I know ,the non-zero argument here means abnormal exit,but is there specific meaning of different int arguments?

Marilyn de Queiroz

Joined: Jul 22, 2000
Posts: 9044
You can set different ints to mean different things in your *.bat file that called the java app. Traditionally zero indicates a successful exit with no errors while one indicates something went wrong and the program exited abnormally.

Most of the time (unless you're writing GUI stuff) you won't need to deal with System.exit at all.

"Yesterday is history, tomorrow is a mystery, and today is a gift; that's why they call it the present." Eleanor Roosevelt
It is sorta covered in the JavaRanch Style Guide.
subject: System.exit(int status)