Assigning Values to Variables

In C programming, variables are used to store data that can be manipulated and used in the program. There are several types of variables in C, including:

Integers (int):

Used to store whole numbers, both positive and negative, without any decimal points. For example,

            int age=30;

Floating-point numbers (float and double):

Used to store numbers with decimal points. float is a single-precision floating-point number, while double is a double-precision floating-point number, providing more precision. For example,

 float pi = 3.14;

Characters (char):

Used to store single characters, enclosed in single quotes. For example,

har grade = 'A';

Arrays:

Used to store a collection of elements of the same type. For example,

                int numbers[5] = {1, 2, 3, 4, 5};
            

Pointers:

Variables that store memory addresses. They can point to other variables or functions. For example,

                int *ptr = &age; 
            

Structures:

Used to group variables of different types under a single name. For example,

                struct Person { char name[50]; int age; };
            

Unions:

Similar to structures but can store only one value at a time. For example

                union Data { int i; float f; char str[20]; };