Which statement is true regarding the ++ and -- operators?

The statement that the order and direction of the ++ (increment) and -- (decrement) operators impact calculation is accurate. These operators can be used in two forms: prefix and postfix.

In prefix form (e.g., ++x or --x), the operator is applied before the variable is used in an expression. This means that the variable is modified first and then the new value is used in the calculation.

In postfix form (e.g., x++ or x--), the original value of the variable is used in the expression first, and then the operator modifies the variable after the expression is evaluated. This distinction in order and direction can result in different outcomes in computations, which demonstrates the significance of using these operators correctly in programming.

Understanding this aspect is critical in managing how variable values change during operations, and it has direct implications on program logic and flow. Therefore, recognizing the impact of their position relative to the variable being operated on is essential for any programmer.