Write a CashRegiste class that can be used with the Retailltem class that you wrote in the module4. The cash Register class should simulate the sale of a retail item. It should have a constructor that accepts a Retilltem objectject as an argument. The constructor should also accept an integer that represents the quantity of item being purchased. In addition, the class should have the following properties and methods: private final double TAX_RATE = 0.06; private double retail; private int quantity; public double getSubtotal () {...} public double getTax () {...} public double getTotal () {...} Here is a sample output: