CountDownLatch

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You are given a standard implementation of the wait-notify pattern. Read about CountDownLatch and use the latch field to rewrite the body of the someMethod method. Remove all unnecessary code from the class.

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Justin Smith

Level 39 , Greenfield, USA, United States

9 April 2022, 13:50

This task is actually really easy, I assume it's orange just because it has to do with a new class, but really, just follow the instructions literally. CountDownLatch seems really good to know about, and I hope we see it again in other tasks. The Oracle page has some really interesting implementations for it (the example in the task is really basic and doesn't give you a sense of the real power in this class): https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CountDownLatch.html