DAY 14
WEEK 2
Working with the Screen,
Printer, and Keyboard
Almost every program must perform input and output. How well a program
handles input and output is often the best judge of the program’s usefulness.
You’ve already learned how to perform some basic input and output. Today you
will learn:- How C uses streams for input and output
- Various ways of accepting input from the keyboard
- Methods of displaying text and numeric data on-screen
- How to send output to the printer
- How to redirect program input and output
Streams and C ....................................................................................................
Before you get to the details of program input/output, you need to learn about
streams. All C input/output is done with streams, no matter where input is com-
ing from or where output is going to. As you will see later, this standard way of22 448201x-CH14 8/13/02 11:12 AM Page 337