DAY 2
WEEK 1
The Components of a C
Program
Every C program consists of several components combined in a certain way.
Most of this book is devoted to explaining these various program components
and how you use them. To help illustrate the overall picture, you should begin
by reviewing a complete (though small) C program with all its components
identified. Today you will learn:- About a short C program and its components
- The purpose of each program component
- How to compile and run a sample program
A Short C Program ..............................................................................................
Listing 2.1 presents the source code for multiply.c. This is a very simple pro-
gram. All it does is accept two numbers that are entered from the keyboard and
calculate their product. At this stage, don’t worry about understanding the05 448201x-CH02 8/13/02 11:14 AM Page 29