14.8. Inter-thread Communication

Try these first

1. 1.

   What is the purpose of the wait() method in thread communication?

   Hint

   Think about when a thread needs to pause its execution.

2. 2.

   What does notify() do?

   Hint

   Consider situations where threads need to communicate events.

3. 3.

   What method causes the current thread to wait until notified?

   • notify()
   • wait()
   • notifyAll()

   Hint

   Remember the method that 'pauses' a thread.

4. 4.

   True or False: notifyAll() wakes up only one waiting thread.

   • True
   • False

   Hint

   Think about how many threads can wake up with notifyAll().

5. 5.

   Create a Java program that implements inter-thread communication for a multi-producer and multi-consumer system. Discuss how you would handle synchronization issues.

   Hint

   Think about using an ArrayList or a Queue in your implementation.

6. 6.

   Analyze a scenario where a thread calls wait() but there's no corresponding notify() or notifyAll() call. What will happen and how might you prevent such a deadlock?

   Hint

   What strategies can be employed to avoid leaving threads in a waiting state without notifications?