試題詳解

Which statement is true?
(A) This code can throw an InterruptedException.
(B) This code can throw an IllegalMonitorStateException.
(C) This code can throw a TimeoutException after ten minutes.
(D) Reversing the order of obj.wait() and obj.notify() might cause this method to complete normally.
(E) A call to notify() or notifyAll() from another thread might cause this method to complete normally. 

(AB) This code does NOT compile unless "obj.wait()" is replaced with "((Thread) obj).wait()".