Notify()

[Alexsandra Carvalho]

Hello,

If I use threadB.wait() in threadA and in threadB I do not call notify(), when the run() method of threadB finishes, then the threadA continues like I had call notify() in threadB...

Why?

[Henry Wong]

Originally posted by Alexsandra Carvalho:
Hello,

If I use threadB.wait() in threadA and in threadB I do not call notify(), when the run() method of threadB finishes, then the threadA continues like I had call notify() in threadB...

Why?

This is an implementation detail -- which is of course, subject to change.

The join() method is implementated internally with the wait()/notifyAll(). A join() method call on the thread object does a wait() on the thread object. When the thread finishes, some of things that it does are, set the alive flag to indicate that it is not, and send a notifyAll() to all threads doing a join().

Obviously, you are not using the join() method, but you are waiting on the same notification object used by the join() method.

Henry

[pradeep singh]

HI
Can anybody explain me the above problem with solution using a suitable example.I am unable to understand this.