Wait() and Notify()
Understand how the wait() and notify() methods facilitate communication and coordination between threads in Java. Learn the importance of synchronizing on the correct object monitor and why using a while loop is safer than an if statement for waiting conditions. This lesson helps you grasp fundamental thread synchronization techniques used in Java concurrency and prepares you for relevant interview questions.
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Now that we understand how the synchronized and volatile keywords protect shared state, we must look at how threads can communicate and coordinate. Sometimes, a thread needs to pause its execution until a specific condition is met. We achieve this using the wait() and notify() mechanisms built into every Java object.
Explain the wait() method.
To illustrate what happens when a thread does not own the required object monitor, consider a common ... ...