Expression: A combination of variables, operators, and values that evaluates to a single value. In this case, "number % 2 == 0" is an example of an expression used within the "isEven" method.
Comparison Operator: Symbols (e.g., ==, <, >) used for comparing values and producing boolean results (true or false).
Modulo Operator (%):An operator that returns the remainder when one number is divided by another. In this case, it helps determine if a number is even or odd.