Which operator would you test to determine if two values are not equal?

• A. Greater than
• B. Equal to
• C. Not equal to
• D. Less than

Answer: (C)

Not equal is the operator you use to check if two values are different. It evaluates to true when the two values aren’t the same, and false when they are the same. For example, 8 and 12 would be considered not equal, so the result is true; 8 and 8 are equal, so the result is false. This differs from the equal operator, which is true only when both values match. The greater-than and less-than operators are about ordering, not specifically about equality, so they don’t directly answer whether two values are not equal. In many languages you’ll see it written as != (or sometimes <>), but the essential idea is using the not-equal check to determine if two values differ.