Hemavathi.J

 Profile Answers by Hemavathi.J 

• Mar 3rd, 2010

 

The wait() and notify() methods are object-specific. The wait() method suspends the current thread of execution, and tells the object to keep track of the suspended thread. The notify() method tells the object to wake up the suspended threads that it is currently keeping track of. Since wait() and notify() are object specific, they must be used within code that is synchronized on the object in question.

It is also important to use state variables when using wait() and notify(), as threads can be woken up by conditions other than notify().

sandeep uniyal

 Profile Answers by sandeep uniyal 

• Mar 23rd, 2010

 

Because in object we dont want our result in syncronized way, but in case of threads the result should be syncronized so we use wait and notify.

mani.sivapuram

 Profile Answers by mani.sivapuram Questions by mani.sivapuram

• May 7th, 2010

 

In threads for interprocess communication between threads is done using wait(), notify()
methods because to avoid polling problem. But in case of objects interprocessing communication between objects is done automatically while processing program in JVM.

SomayNakhal

 Profile Answers by SomayNakhal 

• May 23rd, 2010

 

wait() and notify() are NOT needed for objects statements/method calls within the same thread, because execution on objects running in the same thread will run one at a time and not overlap.

If execution happens in different threads then there is a chance for them to overlap and the need for mechanism to manage concurrent execution arise.

jeetu1607

 Profile Answers by jeetu1607 

• May 30th, 2010

 

wait(), notify() and notifyAll() are in Object class because the lock for these are set on a object and these can be called on any object. Any threads accessing the object will be put into wait status whenever a wait() on that object is called. Any thread will resume execution iff the notify() or notifyAll() method is called for that object.

kalaiselvigurusamy

 Profile Answers by kalaiselvigurusamy 

• Jun 11th, 2010

 

The wait() and notify() methods are object-specific. The wait() method suspends the current thread of execution, and tells the object to keep track of the suspended thread. The notify() method tells the object to wake up the suspended threads that it is currently keeping track of. Since wait() and notify() are object specific, they must be used within code that is synchronized on the object in question.