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Thread priority

Nick Petas
Ranch Hand

Joined: Jan 31, 2007
Posts: 40
I have a main class that starts two threads that write some charachers on the screen.
If I add a System.out.print("something") after the two start commands that something appear before the characters that the threads output yo the screen?
Why so?
Thank you very much.
Paul Clapham

Joined: Oct 14, 2005
Posts: 19973

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Nick Petas
Ranch Hand

Joined: Jan 31, 2007
Posts: 40
ok.I think it is ok now.
Campbell Ritchie

Joined: Oct 13, 2005
Posts: 46349
Don't understand the question, I am afraid. Please supply more details, eg what you are printing on screen.

You do realise that the two Threads run independently of each other, so they will not necessarily carry out actions in a particular order, particularly things like input and output which can take thousands or millions of times longer to execute than calculations?
Ulf Dittmer

Joined: Mar 22, 2005
Posts: 42965
There's no telling which of the 3 threads will be scheduled to run (or to be started) first. The results could be different on different machines, or on different JREs on the same machine, and even on the same JRE on the same machine (although that's unlikely).
I agree. Here's the link:
subject: Thread priority
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