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"Daemonizing" a Java program

Posted on 1998-08-17
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Last Modified: 2012-06-22
Is it possible to detach a Java program from its terminal, eg the MSDOS prompt for Win95, or the xterm for Lynix??? I have been banging my head against the wall for quite a while on this. Some process similar to giving a thread daemon status on Unix-based machines. Instantiating a new class inside a thread with setDaemon(true) and then exiting does not work! Any other ideas/options.

Thx,
  jdyer
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Question by:jdyer
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evijay earned 70 total points
ID: 1222008
Use javaw instead of java to run the program.

say you have a test daemon Test.class

run it using


javaw Test

If you want a daemon to start when the user logs in

in nt, you put command javaw classname in the startup panel.
in unix, add this in initialization file.


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Expert Comment

by:evijay
ID: 1222009
you can close the input and output streams,

System.in.close();

System.out.close();
System.err.close();

This detaches java program from terminal.


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Author Comment

by:jdyer
ID: 1222010
Thx so much, I had never noticed that or used that program in 1-1/2 years of Java programming. Time to look over the docs again I guess.

Thanx for waking me up!
 - jdyer

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