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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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 the primary distinction between 'MappedByteBuffer' and 'ByteBuffer'?

  1. Only 'ByteBuffer' supports encryption

  2. Only 'MappedByteBuffer' can be used with channels

  3. 'MappedByteBuffer' maps a file directly into memory

  4. 'ByteBuffer' cannot be used for file operations

The correct answer is: 'MappedByteBuffer' maps a file directly into memory

Explanation 'MappedByteBuffer' maps a file directly into memory, while 'ByteBuffer' does not. Option A is incorrect because both classes support encryption. Option B is incorrect because both can be used with channels. Option D is incorrect because 'ByteBuffer' can be used for file operations as well.

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