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 feature do BufferedReader and BufferedWriter provide?

  1. Primitive data type handling

  2. Automatic data conversion

  3. Buffering for efficiency

  4. Formatted output

The correct answer is: Buffering for efficiency

The BufferedReader and BufferedWriter classes provide the ability to read and write data efficiently by buffering input and output operations. This allows for faster reading and writing of larger amounts of data. Option A is incorrect because BufferedReader and BufferedWriter do not handle primitive data types - that is the job of the DataInputStream and DataOutputStream classes. Option B is incorrect because while both classes can handle data conversion, this is not their primary purpose. Option D is incorrect because formatted output is the responsibility of the PrintWriter class. Overall, the main feature of BufferedReader and BufferedWriter is the use of buffering to improve efficiency when reading and writing data.