CHAPTER 22 — Reading Data from a File

The previous chapter discussed files and how to send the output of a program to a text file. This chapter discusses how a program can read its input from a text file.

Chapter Topics:

• Input file redirection.
• Problems with blank lines.
• Redirecting both input and output.
• Numeric input from a text file.
• Problems with illegal characters in a number.
• The trim() method.