Programming in "C‟ | Describe with suitable example how to use increment and decrement operators.

Increment operator:

Increment operator (++) is a unary operator. It operates on one operand. It is used to add one to an existing value of variable. 

Syntax: variable_name++ or ++variable_name

Example: 

int num=6;

printf(“%d”,num);

num++;

printf(“\n%d”,num);

In above example initially value of num is 6. Due to increment operator (++) value of variable num will become 7.

Decrement operator:

Decrement operator(--) is an unary operator. It operates on one operand. It is used to subtract one from an existing value of variable.

Syntax: variable_name-- or --variable_name

Example:

int num=5;

printf(“%d”,num);

num--;

printf(“\n%d”,num);

In above example initially value of num is 5. Due to decrement operator (--) value of num will become 4.