Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What kind of tasks is CyclicBarrier useful for?

Tasks that need to be executed sequentially
Tasks that must run on separate threads without synchronization
Tasks that perform work in parallel and wait for all to complete
Single-threaded tasks that do not interact with each other

The correct answer is: Tasks that perform work in parallel and wait for all to complete

CyclicBarrier is useful for tasks that perform work in parallel and wait for all to complete. This option is correct because CyclicBarrier acts as a synchronization point for multiple threads to wait at until all threads have reached the barrier and completed their tasks. Option A is incorrect because CyclicBarrier is not used only for sequential tasks. It is specifically designed for parallel tasks that require synchronization. Option B is incorrect because CyclicBarrier is used specifically for tasks that need synchronization between multiple threads. This option states that the tasks "must run on separate threads without synchronization," which contradicts the purpose of CyclicBarrier. Option D is incorrect because CyclicBarrier is not used for single-threaded tasks. It is designed for use with multiple threads that need to wait for each other's completion before continuing.