What Is Cyclicbarrier and Countdownlatch in Java?

What Is Cyclicbarrier and Countdownlatch in Java?
CountDownLatch : A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads complete. CyclicBarrier : A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.

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Consequently, what is CyclicBarrier Java?

CyclicBarrier in Java. CyclicBarrier is used to make threads wait for each other. It is used when different threads process a part of computation and when all threads have completed the execution, the result needs to be combined in the parent thread.

Secondly, why do we use CountDownLatch in Java? CountDownLatch in Java is a kind of synchronizer which allows one Thread to wait for one or more Threads before starts processing. This is very crucial requirement and often needed in server side core Java application and having this functionality built-in as CountDownLatch greatly simplifies the development.

Similarly, it is asked, can CyclicBarrier and CountDownLatch in Java be reused?

Both CyclicBarrier and CountDownLatch are used to implement a scenario where one Thread waits for one or more Thread to complete their job before starts processing but there is one difference between CountDownLatch and CyclicBarrierin Java which separates them apart and that is, you can not reuse same CountDownLatch

Can you explain CyclicBarrier?

A CyclicBarrier is a synchronizer that allows a set of threads to wait for each other to reach a common execution point, also called a barrier. CyclicBarriers are used in programs in which we have a fixed number of threads that must wait for each other to reach a common point before continuing execution.

Related Question Answers

What is Java volatile?

Essentially, volatile is used to indicate that a variable's value will be modified by different threads. Declaring a volatile Java variable means: Access to the variable acts as though it is enclosed in a synchronized block, synchronized on itself.

What is a CountDownLatch?

As per java docs, CountDownLatch is a synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes. CountDownLatch concept is very common interview question in java concurrency, so make sure you understand it well.
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Alexander Ross

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