Java Threads and the Concurrency Utilities

CHAPTER 3

Waiting and Notification

Java provides a small API that supports communication between threads. Using this API, one thread waits for a condition (a prerequisite for continued execution) to exist. In the future, another thread will create the condition and then notify the waiting thread. In this chapter, I introduce you to this API.

Wait-and-Notify API Tour

The java.lang.Object class provides a Wait-and-Notify API that consists of three wait() methods, one notify() method, and one notifyAll() method. The wait() methods wait for a condition to exist; the notify() and notifyAll() methods notify waiting threads when the condition exists: ...