start join start

[Ravi]

Can you please tell why the following code snippet gives me error
IllegalThreadStateException

n1 = new Thread(......//
n2 = new Thread(......//
...
//
n1.start();
n2.start();

n1.join();
n2.join();

n1.start();
n2.start();

....

 

[Eric Sosman]

Ravi wrote On 03/06/07 12:32,:

Can you please tell why the following code snippet gives me error
IllegalThreadStateException

n1 = new Thread(......//
n2 = new Thread(......//
..
//
n1.start();
n2.start();

n1.join();
n2.join();

n1.start();
n2.start();

Because a Thread can only be started once. Read the
Javadoc.

 

[Ravi]

Because a Thread can only be started once. Read the

Javadoc.

but can we stop and then start it again.any work around for it

 

[Thomas Schodt]

but can we stop and then start it again.any work around for it

Tell us what you are trying to accomplish.

Is there a reason for not using new Thread() again?

[A workaround would be; don't allow the thread to complete in the first
place.]

 

[Patricia Shanahan]

but can we stop and then start it again.any work around for it

You have two options:

1. Use some form of coordination other than join, so that each thread
does not terminate until it has done all its work.

2. Create new threads to do the post-join tasks.

Patricia