Variables in C Language
Categories: C language
A variable is a name of the memory location. It is used to store data. Its value can be changed, and it can be reused many times.
It is a way to represent memory location through symbol so that it can be easily identified.
Let's see the syntax to declare a variable:
The example of declaring the variable is given below:
Here, a, b, c are variables. The int, float, char are the data types.
We can also provide values while declaring the variables as given below:
int a=10,b=20;//declaring 2 variable of integer type
Rules for defining variables
A variable can have alphabets, digits, and underscore.
A variable name can start with the alphabet, and underscore only. It can't start with a digit.
No whitespace is allowed within the variable name.
A variable name must not be any reserved word or keyword, e.g. int, float, etc.
Valid variable names:
Invalid variable names:
int a b;