Why wait and notify method in Object class

Why wait and notify method in Object class, why these are not in Thread Class.

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rahultiwari8aug

  • Jan 6th, 2008
 

wait and notify are in object class because we use them for communication between thread and objects.if wait() is called on thread,that thread has to release object it holds.these facility is not provided to Thread class methods  liek sleep() or suspend() which does not release objects.                                      

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sujithkthomas

  • Nov 13th, 2009
 

Inter thread communication is not directly supported by the producer or consumer, but by the object they are acting upon. Also lock is associated with a particular object. If a thread needs a lock it use sync block and release using object's methods.

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