Why is a Java Semaphore useful? Today I’ll tell you the four reasons why a Java Semaphore is useful.
How to Synchronize Threads – Use CountDownLatch
Concurrency in non-trivial systems is difficult. java.util.concurrent. CountDownLatch is one of my favourite concurrent core Java classes, because it simplifies the synchronization of threads. This class is useful when you want to wait until some task in another thread completes, before continuing in the current thread.
