C++ Programming Code Examples C++ > If Else and Switch Case Code Examples C++ Program to Check Whether Number is Even or Odd C++ Program to Check Whether Number is Even or Odd In this example, if...else statement is used to check whether a number entered by the user is even or odd. 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. In this program, if..else statement is used to check whether n%2 == 0 is true or not. If this expression is true, n is even if not n is odd. #include <iostream> using namespace std; int main() { int n; cout << "Enter an integer: "; cin >> n; if ( n % 2 == 0) cout << n << " is even."; else cout << n << " is odd."; return 0; }
