Question

What is a mutator method? Explain why mutator methods usually return the value None.

Answer 1

Answer: Mutator method is used to modify the variable values. This method does not require to return any value. So, the return value of this method is none.

Explanation:

Answer 2

Answer:

 a mutator method is a method used to control changes to a variable. They are also widely known as setter methods. Often a setter is accompanied by a getter (also known as an accessor), which returns the value of the private member variable.