Arithmetic Operators in C Programming

C language have a following arithmetic operators. Assume variable i holds 100 and variable j holds 200 then –

Operator Description Example
+ Adds two operands. i + j = 300
Subtracts second operand from the first. i − j = -100
* Multiplies two operands. i * j = 20000
/ Divide. j / i = 2
% Modulus Operator returns the remainder of integer division. j % i = 0
++ Increment operator increases the value of variable by one. i++ = 101
Decrement operator decreases the value of variable by one. i– = 99

Example : Write a program to demonstrate the various arithmetic operators.

OUTPUT

Increment and Decrement Operator

1. Increment operator      ++
2. Decrement operator    —

In a C language, Increment operator (++)  increases the value of variable by one and Decrement operator  (–) decreases the value of variable by one.

There are two form of increment  and decrement operator:

1. Prefix form
2. Postfix form

Prefix Form : In the prefix expression operator appears in the expression before the operands.

Example : ++A

In the prefix form first the value of operand is increment or decrement than the value of operand is used in expression.

Example

Postfix Form: In the postfix expression operator appears in the expression after the operands.

Example : A++

In the postfix form first the value of operand is used in expression than value of operand is incremented or decremented.

Example: Write a program to demonstrate the increment and decrement operator.

OUTPUT