Discuss the importance of accessor and mutator methods and how they apply to the abstraction concept. Answer: It

What will be an ideal response?

It is considered good programming practice to make all instance variables private, but there are times when the values of the instance variables need to be accessed or updated. Accessor methods allow you to obtain the data, while mutator methods allow you to change the data in a class object. A mutator method can verify the validity of a value before updating the instance variable.