Part A) Write a class BagelsOrderItem that implements the OrderItem interface. Implement your class in accordance with the encapsulation principle. Provide one constructor that takes two parameters: double price and int quantity. Provide accessor methods that return the items price and quantity. BagelsOrderItems getCost method should return price times quantity. Write the entire BagelsOrderItem class, including all necessary instance variables and methods.

Part B ) Write a class BakersDozen, a subclass of BagelsOrderItem. A BakersDozen object represents an order of 13 bagels, which includes one free bagel. Provide one constructor that takes one parameter, double price (the quantity is known: it is 13). Override BagelsOrderItems getCost method to reflect one free bagel. Do not duplicate the instance variables of BagelsOrderItem class in BakersDozen. Write class BakersDozen below.