Ii) Identify an additional data member for the subclass iii) Which method implements method overriding. Give a reason for your answer.

//Java

Johnson enterprises uses a computer to handle its sales invoices. lately, business has been so good that it takes an extra 3 hours per night, plus every third saturday, to keep up with the volume of sales invoices. management is considering updating its computer with a faster model that would eliminate all of the overtime processing.