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What is the difference between CyclicBarrier and CountDownLatch in Java?

Deepika Sahu answered on December 24, 2022 Popularity 3/10 Helpfulness 1/10

answer What is the difference between CyclicBarrier and CountDownLatch in Java?

What is the difference between CyclicBarrier and CountDownLatch in Java?

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CountDownLatch

CyclicBarrier

CountDownLatch is a construct that a thread looks out for while different threads tally down on the latch until it arrives at zero. 	A CyclicBarrier is a reusable construct where a gathering of threads stands by together until the entirety of the threads shows up. By then, the barrier is broken and a move can alternatively be made.
CountDownLatch keeps up a count of tasks.	CyclicBarrier keeps up a count of threads.
In CountDownLatch single thread can countdown more than once, this would reduce count by number of times countdown() method is called.	In CyclicBarrier single thread can call awaits only once which would reduce barrier count by one only, even if call awaits() method more than once.
When we are using a CountDownLatch, you must specify the no. of calls to the countdown() method while creating a CountDownLatch object.	When we are using CyclicBarrier, you must specify the no. of threads that should call await() function to trip the barrier.
It is initialized to N used to make one thread stand by until N strings have finished some activity, or some activity has been finished N times.	If you have a CyclicBarrier initialized to 3 that implies you ought to have in any event 3 strings to call await().
CountDownLatch cannot be reused, when count arrives at zero it can’t be reset. 	CyclicBarrier can be reused after holding threads are released.
In CountDownLatch just the current thread that has an issue throws a special case/exception.	In a CyclicBarrier, if a thread experiences an issue (timeout, interruption), the wide range of various threads that have reached await() get a special case/exception. 
It’s advanceable.	It’s not advanceable.
If the current thread is interrupted, it will throw InterruptedException. It will not impact other threads.	If one thread is interrupted while waiting then all other waiting threads will throw BrokenBarrierException

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Contributed on Dec 24 2022

Deepika Sahu

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What is the difference between CyclicBarrier and CountDownLatch in Java?

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