Which of the following classifications of method behavior is accurate?
A)Methods that do not change parameter variables always have side effects.
B)Methods that change parameter variables do not have side effects.
C)Methods that change parameter variables always have side effects.
D)Methods that do not change parameter variables never have side effects.

Question

Quizplus · Accepted Answer

Methods that change parameter variables always have side effects. A side effect is any change in state that is observable outside the called method other than the return value. When a method changes a parameter variable, it is changing the state of an object outside of itself, which is an observable side effect. Therefore, methods that change parameter variables always have side effects.

Which of the Following Classifications of Method Behavior Is Accurate