C++ 02: Data Types and Variables

Data Types in C++

1) To store numbers without decimal points.

Data Type	Memory
int	2 bytes
long	4bytes

2) To store numbers with decimal points.

Data Type	Memory
float	4 bytes
double	8bytes

3)To store characters like alphabets and symbols.

Data Type	Memory
char	1byte

Variables 

A memory location with specified name is called as variable. The variables are used to store the values of different data types.

Syntax:

            data_type_variable_name

E.g.    float x = 3.14;