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Chandana Garlapati
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Joined: Jul 06, 2009
Posts: 97
This question is from whizlabs


output: Trying to notify

My question is why only Tring to notify is printed? why notified is in waiting state???
can anyone please explain this program
Sebastian Janisch
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Joined: Feb 23, 2009
Posts: 1183
notifyAll must be called on the corresponding instance, not on the class itself. Hence the Thread waits forever.


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Ken Truitt
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Joined: Aug 23, 2007
Posts: 124

The wait/notification scheme fails because the code that is supposed to notify is synchronized
on the class object, while the code that is waiting is synchronized on an instance of that
class. Different locks, they don't communicate. That is, 'this' refers to an instance, and the
[classname].class formulation refers to the class object.


SCJP 88% | SCWCD 84%
Chandana Garlapati
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Joined: Jul 06, 2009
Posts: 97
Thanks a Lot! for both
 
 
subject: Threads