Class MyClass has a single ReentrantLock object, myLock.Suppose thread one calls myLock.lock() as it enters methodX and immediately completes its CPU time slice.What will happen as thread two calls methodY and attempts to call myLock.lock()?
A)Thread two will wait for the lock.
B)Thread two will acquire the lock.
C)Deadlock will occur.
D)Thread two causes the IllegalStateMonitorException.

Question

Quizplus · Accepted Answer

When thread two attempts to call myLock.lock(), it will find that the lock is already held by thread one and will have to wait for thread one to release the lock before it can acquire it. Therefore, the best choice is A, thread two will wait for the lock.

Class MyClass Has a Single ReentrantLock Object, MyLock