If num is an integer variable, what does the expression num % 2 == 0 ? "Even" : "Odd" represent?

The expression num % 2 == 0 ? "Even" : "Odd" is a conditional (ternary) operator found in many programming languages such as C, C++, Java, and JavaScript. Here's a breakdown of what it represents:

1. Modulo Operation: The expression num % 2 computes the remainder when num is divided by 2.

   • If num is even, this operation results in 0, because even numbers (like 2, 4, 6, etc.) are divisible by 2 without any remainder.
   • If num is odd, this operation results in 1, because odd numbers (like 1, 3, 5, etc.) leave a remainder of 1 when divided by 2.

2. Conditional Check: The comparison num % 2 == 0 checks whether the result of the modulo operation is equal to 0.

   • If true (meaning num is even), the expression evaluates to "Even".
   • If false (meaning num is odd), the expression evaluates to "Odd".

3. Purpose: This expression is essentially a quick way to determine whether an integer is even or odd, returning the string "Even" for even numbers and "Odd" for odd numbers.

Overall, the expression succinctly classifies an integer as either "Even" or "Odd" based on its divisibility by 2.