CashRegister Java

Write a CashRegister class that can
be used with the RetailItem class that you wrote in Chapter 6’s Programming
Challenge 4. The CashRegister class should simulate the sale of a retail item.
It should have a constructor that accepts a RetailItem object as an argument.
The constructor should also accept an integer that represents the quantity of
items being purchased. In addition, the class should have the following
methods: - The getSubtotal method should return the subtotal of the sale, which
is the quantity multiplied by the price. This method must get the price from
the RetailItem object that was passes as an arugument to the constructor. - The
getTax method should return the amount of sales tax on the purchase. The sales
tax rate is 6 percent of a retail sale. - The getTotal method should return the
total of the sale, which is the subtotal plus the sales tax.

Demonstrate the class in a program that asks the user for the quantity of items
being purchased, and then displays the sale’s subtotal, amount of sales tax,
and total.

 
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