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

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Prepare for your Java exam with our ultimate quiz based on 'Thinking in Java'. Engage with expertly crafted questions that enhance your learning process. Perfect for Java enthusiasts looking to solidify their knowledge!

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 is CountDownLatch used for?

  1. Data manipulation

  2. Thread synchronization

  3. File handling

  4. Networking operations

The correct answer is: Thread synchronization

CountDownLatch is a class in Java that allows threads to synchronize their actions. It is commonly used in applications where multiple threads need to wait for a particular task to complete before proceeding. Options A, C, and D are incorrect because they do not involve synchronization between threads. Data manipulation involves processing and altering data, file handling involves reading and writing files, and networking operations involve communication between systems. While these may be related to overall application functionality, they do not directly involve thread synchronization, which is the main purpose of CountDownLatch.