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Difference between wait() and wait(long timeout), What are thread states when these method are called?
Java Interview Questions and Answers (part 4)
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50. Difference between wait() and wait(long timeout), What are thread states when these method are called?
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wait()
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wait(long timeout)
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When wait() method is called on object, it causes causes the current thread to wait until another thread invokes the notify() or notifyAll() method for this object.
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wait(long timeout) - Causes the current thread to wait until either another thread invokes the notify() or notifyAll() methods for this object, or a specified timeout time has elapsed.
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When wait() is called on object - Thread enters from running to waiting state.
It waits for some other thread to call notify so that it could enter runnable state.
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When wait(1000) is called on object - Thread enters from running to waiting state. Than even if notify() or notifyAll() is not called after timeout time has elapsed thread will go from waiting to runnable state.
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(Continued on next question...)
Other Interview Questions
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