Which of the following statements are true? a.The notify() method can wake only one waiting thread. b.An exception would occur if no thread is waiting on the object when the notify() method is invoked on the object. c.When wait() is invoked, it pauses the thread and releases the lock on the object simultaneously. When the thread is restarted after being notified, the lock is automatically reacquired. d.The wait(), notify(), and notifyAll() methods must be invoked from a synchronized method or a synchronized block.

Answered: Which of the following statements are…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Which of the following statements are true?

	a.	The notify() method can wake only one waiting thread.
	b.	An exception would occur if no thread is waiting on the object when the notify() method is invoked on the object.
	c.	When wait() is invoked, it pauses the thread and releases the lock on the object simultaneously. When the thread is restarted after being notified, the lock is automatically reacquired.
	d.	The wait(), notify(), and notifyAll() methods must be invoked from a synchronized method or a synchronized block.

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