Multiple choice

Which class or interface defines the wait(), notify(),and notifyAll() methods?

  1. Object

  2. Thread

  3. Runnable

  4. Class

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Object class defines these thread-specific methods. Option B, C, and D are incorrect because they do not define these methods. And yes, the Java API does define a class called Class, though you do not need to know it for the exam.