Variable and data type in c

Using variables

C variable is nothing but it is just a name is given to any data type.

It also have some rules

It does not contain any other character except underscore. It should not be a keyword of c. it should not be larger than 32 words.

NOTE: Name of variable should be of your choice.

Now i will tell you what a data type is

A data type is nothing it is just a type of data like if integer character decimal number and Many other kind of data.

Let us discuss different type of data types

PRIMARY DATA TYPE

SECONDARY DATA TYPE

PRIMARY DATA TYPE

Integer

It is Kind of data type which tell that a integer is being used in a program in easy language we can say that a number is use in our program.

Character data type

It is a kind of data type which tell that a character even that is symbol for a letter or an alphabet is used in our program.

Double data type

This data type tell us that a decimal number is being used a program for printing for taking a decimal number from user the same work is being done by float data type but float data type round off our number and double data type does not round orf number.

Float data type

It is also act as double data type it also tell that it is a molecule your program but it round off that decimal number.

SECONDARY DATA TYPE

This data type use while we learn modular programing in c they form using primary data types.