Programming in C++, 2nd Edition

346 Constructors and Destructors

9.1 INTRODUCTION

When a variable is declared and if not initialized, it contains garbage value. The programmer

needs to assign appropriate value to the variable. The compiler itself cannot carry out the process

of initialization of a variable. The programmer needs to explicitly assign a value to the variable.

Initialization prevents the variable from containing garbage value.

Consider an example

float height; // variable declaration

height=5.5;

// assigning value to variable

In the above example, height is a variable of float type. It holds any garbage value before

initialization. In the next statement, variable ...