Variable

what is variable in C language?

Variable is only name of memory location of your system hard disk. Variable occupy space in memory. It is called data container. Variable value can be replace.

Variable name rule in C programming

1. Variable name can not start with number.
2. Special characters can not use in variable name But Underscore( _ ) can be use.
3. White space can not be use in variable name.

4. Do not use keywords for variable name.

Variable declaration syntax in C programming language

Data-type vriableName = vlaue;
OR
Data-type vriableName;
Example:
int a = 101;
int b;