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Created: 03/19/2006, Revised 08/20/2014

CHAPTER 23 — File I/O with Scanner and PrintWriter

This chapter discusses how to use the Scanner class for input from files and how to use the PrintWriter class for output to files.

This chapter is optional. Except for chapter 24, disk I/O is not much used again in these pages until chapter 80. However, many interesting programs do disk I/O, so it is useful to know.

Chapter Topics:


In our programs so far, what input stream has been used with Scanner ?