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.

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What kind of queue is a DelayQueue?

  1. FIFO (First In First Out)

  2. LIFO (Last In First Out)

  3. Priority

  4. None of the above

The correct answer is: Priority

A DelayQueue is a special type of queue where items are removed from the queue based on their expiration time. This is different from a FIFO queue (A), which removes items in the same order they were added, or a LIFO queue (B), which removes the most recently added item first. Additionally, a DelayQueue does not prioritize items based on a certain criteria, so it is not classified as a Priority queue (C). Option D is incorrect as a DelayQueue is a specific type of queue and therefore cannot be "none of the above".

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