Which class or interface defines the wait(), notify(), and notifyAll() methods?
Correct answer(s):
- Object
Topic
Threads
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Quizzes in Threads
Which of the following will not directly cause a thread to stop?
Correct answer(s):
notify()
Assume the following method is properly synchronized and called from a thread A on an object B:
wait(2000);
After calling this method, when will the thread A become a candidate to get another turn at the CPU?
Correct answer(s):
- After thread A is notified, or after two seconds.
Which method registers a thread in a thread scheduler?
Correct answer(s):
start();
Which will contain the body of the thread?
Correct answer(s):
run();
Which method must be defined by a class implementing the java.lang.Runnable interface?
Correct answer(s):
public void run()
Which of the following will directly stop the execution of a Thread?
Correct answer(s):
wait()
Which three guarantee that a thread will leave the running state?
Correct answer(s):
wait()sleep(1000)aLiveThread.join()
Which two of the following methods are defined in class Thread?
Correct answer(s):
start()run()
Which cannot directly cause a thread to stop executing?
Correct answer(s):
- Calling notify() method on an object.
Which three are methods of the Object class?
Correct answer(s):
notify();notifyAll();wait(long msecs);
Which two are valid constructors for Thread?
Correct answer(s):
Thread(Runnable r, String name)Thread()
What is the name of the method used to start a thread execution?
Correct answer(s):
start();