When a thread obtains the monitor lock on an object, then determines that it cannot continue with its task on that object until some condition is satisfied, the thread can call Object method ________; this releases the monitor lock on the object, and transitions the thread waits to the waiting state.
A) waitForOtherThreads
B) stop
C) waitForCondition
D) wait

Question

Quizplus · Accepted Answer

The appropriate method to call in this scenario is the wait() method. This releases the monitor lock on the object and transitions the thread to the waiting state until it is notified by another thread that the condition has been satisfied. Options A and B are not appropriate because they do not address the issue of waiting for a condition to be satisfied. Option C is not a valid method in the Object class.

When a Thread Obtains the Monitor Lock on an Object