Owl Teach Yourself Java 2 in 21 Days, Fourth Edition
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Day 15: Working with Input and Output

Certification Practice

Each chapter of the book ends with a Certification Practice question that's comparable to what you could expect to be asked on a Java certification test. Here's the answer for chapter 15:

Answer (a) is correct. The input stream represented by the System.in variable can be used like any other input stream. You can use it to create a reader object or a stream object and then read the data from the stream accordingly.

Answers (b), (c), and (d) are incorrect. Edit

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