VARIABLES

A VARIBLE IS A CONTAINER WHICH STORES A VALUE OF CONSTANT .

EXAMPLE ---->  a=3  /    a IS ASSIGNED 3

                             C=A  /   C IS ASSIGNED A

• A VARIABLE IS AN ENTITY ( BODY ) WHOSE VALUE CAN BE CHANGE . 

 

RULES FOR NAMING VARIABLES IN C 

• FIRST CHARACTER MUST BE AN ALPHABET OR UNDERSCORE ( _ ) .
• NO COMMAS , BLANKS ALLOWED . 
• VARIABLE NAMES ARE CASE SENSITIVE .

TYPES OF VARIABLES 

1. INTEGER VARIABLES = int a =3 .
2. REAL VARIABLES  = float a = 7.7 
3. CHARACTER VARIABLES = char a = " b "