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Java / Java Multithreading

Applications of CountDownLatch in Java thread.

CountDownLatch works in latch principle, main thread will wait until gate is open. One thread waits for n number of threads specified while creating CountDownLatch in Java.

Classical example of using CountDownLatch in Java is any server side core Java application which uses services architecture, where multiple services are provided by multiple threads and application can not start processing until all services have started successfully.

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Java Multithreading part II

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