Book Image

Learn C Programming

By : Jeff Szuhay
Book Image

Learn C Programming

By: Jeff Szuhay

Overview of this book

C is a powerful general-purpose programming language that is excellent for beginners to learn. This book will introduce you to computer programming and software development using C. If you're an experienced developer, this book will help you to become familiar with the C programming language. This C programming book takes you through basic programming concepts and shows you how to implement them in C. Throughout the book, you'll create and run programs that make use of one or more C concepts, such as program structure with functions, data types, and conditional statements. You'll also see how to use looping and iteration, arrays, pointers, and strings. As you make progress, you'll cover code documentation, testing and validation methods, basic input/output, and how to write complete programs in C. By the end of the book, you'll have developed basic programming skills in C, that you can apply to other programming languages and will develop a solid foundation for you to advance as a programmer.
Table of Contents (33 chapters)
Section 1: C Fundamentals
Section 2: Complex Data Types
Section 3: Memory Manipulation
Section 4: Input and Output
Section 5: Building Blocks for Larger Programs

Declaring and initializing arrays

An array is a collection of two or more values, all of which have the same type and share a single commonbasename. It makes no sense to have an array of just one value; that would simply be a variable. An array definition has the following syntax:

dataType arrayIdentifier[ numberOfElements ];

Here, dataType is any intrinsic or custom type, arrayIdentifier is the basename of the array, and numberOfElements specifies how many values of dataType are in the array. numberOfElements, for whatever type and values are given, will be converted into an integer. All the elements of the array are contiguous (or side-by-side) so that the size of the array is the size of each element multiplied by the number of elements in the array.

To declare an integer array of 10 elements, we would use the following statement:

int anArray[10];

anArray is the basename of our array of 10 integers. This declaration creates 10 variables...