Answer Posted / sumitpalsingh

The purpose of using the wait(),notify() and notifyAll() methd is used for interThread communication.
for Example :-There is a n situation communication between Producer and Consumer...Producer wll produce an item and go to waiting state by using wait() method.and it will notify to the consumer for to consume an item. After conume an Item Consumer will come into waiting state by using wait() method ..and give the notification to Produer by using notify() method to produce an item.But all these methods are called only in synhronized() method or synchronized block.

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