In this example, if…else statement is used to check whether a number entered by the user is even or odd.
To understand this example, you should have the knowledge of following C++ programming topics:
C++ if, if…else and Nested if…else
Integers which are perfectly divisible by 2 are called even numbers.
And those integers which are not perfectly divisible by 2 are not known as odd number.
To check whether an integer is even or odd, the remainder is calculated when it is divided by 2 using modulus operator %. If remainder is zero, that integer is even if not that integer is odd.