Q. Which two can be used to create a new Thread?

1. Extend java.lang.Thread and override the run() method.
2. Extend java.lang.Runnable and override the start() method.
3. Implement java.lang.Thread and implement the run() method.
4. Implement java.lang.Runnable and implement the run() method.
5. Implement java.lang.Thread and implement the start() method.

View solution

Q. Which cannot directly cause a thread to stop executing?

View solution

Q. Which three are methods of the Object class?

1. notify();
2. notifyAll();
3. isInterrupted();
4. synchronized();
5. interrupt();
6. wait(long msecs);
7. sleep(long msecs);
8. yield();

View solution

Q. Which two are valid constructors for Thread?

1. Thread(Runnable r, String name)
2. Thread()
3. Thread(int priority)
4. Thread(Runnable r, ThreadGroup g)
5. Thread(Runnable r, int priority)

View solution

Q. What is the name of the method used to start a thread execution?

View solution

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

View solution

Q. Which of the following will not directly cause a thread to stop?

View solution

Q. 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?

View solution

Q. Which method registers a thread in a thread scheduler?

View solution

Q. Which will contain the body of the thread?

View solution

Q. Which method must be defined by a class implementing the java.lang.Runnable interface?

View solution

Q. Which of the following will directly stop the execution of a Thread?

View solution

Q. Which three guarantee that a thread will leave the running state?

1. yield()
2. wait()
3. notify()
4. notifyAll()
5. sleep(1000)
6. aLiveThread.join()
7. Thread.killThread()

View solution

Q. Which two of the following methods are defined in class Thread?

1. start()
2. wait()
3. notify()
4. run()
5. terminate()

View solution

Q. Which of these method wakes up all the threads?

View solution

Q. Which of these method wakes up the first thread that called wait()?

View solution

Q. Which of these method is used to tell the calling thread to give up a monitor and go to sleep until some other thread enters the same monitor?

View solution

Q. Which of this method is used to avoid polling in Java?

View solution

Q. Which of the following will ensure the thread will be in running state?

View solution

Q. Which of the following stops execution of a thread?

View solution