C - VARIABLES

 VARIABLES:-

            A variable is a data name that may be used to stores a data value.

Declaration :

Syntax -     <<Data type>> <<variable name>>;

Ex. -           int a;

Definition :

Syntax -     <<varname>>=<<value>>;

Ex. -           a=10;

Rules for naming variables:

·      Should not be a reserved word like int etc.

·      Should start with a letter or an underscore (_)

·      Can contain letters, numbers or underscore.

·      No other special characters are allowed including space

·      Variable names are case sensitive, A and a are different.

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