Java Multithreading Test 1 | 25 Questions for Java Developers

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?

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()

Which cannot directly cause a thread to stop executing?

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

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)

Which two of the following methods are defined in class Thread?
1. start()
2. wait()
3. notify()
4. run()
5. terminate()

Which method must be defined by a class implementing the java.lang.Runnableinterface?

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();

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

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

public class MyRunnable implements Runnable
{
public void run()
{
// some code here
}
}
which of these will create and start this thread?

class X implements Runnable
{
public static void main(String args[])
{
/* Missing code? */
}
public void run() {}
}
Which of the following line of code is suitable to start a thread ?

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

Which will contain the body of the thread?

Which method registers a thread in a thread scheduler?

What method in the Thread class do you call to make the current thread cease executing for a specified amount of time?

You designate a method as being synchronized by:

Can we make the user thread as daemon thread if thread is started?

A single sequence of code executing within a program is known as:

Is it possible to start a thread twice?

What method is declared in the Runnable interface and serves as the path of execution for all threads?

To start the execution of a thread after you create it, you must:

Which of the following statements about threads is true?

What is the primary drawback to using synchronized methods?

Can we call the run() method instead of start()?