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Chapter 8: Understanding Streams


This is the first of four chapters devoted to streams and file input/output. This chapter introduces streams, and deals with keyboard input, and output to the command line.

By the end of this chapter, you will have learned:

  • What is a stream and what are the main classes that Java provides to support stream operations.

  • What are stream readers and writers and what they are used for.

  • How to read data from the keyboard.

  • How to format data that you write to the command line.

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