Answer Posted / rajani nagandla

The sleep method is used when the thread has to be put
aside for a fixed amount of time. Ex: sleep(1000), puts the
thread aside for exactly one second. The wait method is
used to put the thread aside for up to the specified time.
It could wait for much lesser time if it receives a notify
() or notifyAll() call. Ex: wait(1000), causes a wait of up
to one second. The method wait() is defined in the Object
and the method sleep() is defined in the class Thread.

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