Write a program that considers a class that keeps track of the sales of an item. An object of this class will have the following attributes:
Cost per item
Bulk discount percentage
And, the following methods:
registerSale(n) records the sale of n items. If n is larger than the bulk quantity, the cost per item will be reduced by the bulk discount.
displaySales displays the number sold, the total sales, and total discount
Design and implement the class in Java™.
Use the appropriate public or private modifiers for the methods and attributes.