Java  I have to create a program with two classes that prompts a cashier to enter price, quantity, and  Y for a pet or N for an item; keep repeating until a price of -1 is entered i.e. use a price of –1 as a sentinel (i.e. -1 means all values have been entered). Additional Info. A pet shop wants to give a discount to its clients if they buy one or more pets and at least five other items. The discount is equal to 20 percent of the cost of the other items, but not the pets. You will need the following classes:  "item" and "invoice" Item - used to describe an item (price, isPet and quantity); use constructor to set the item properities. public Item(double price, boolean isPet, int quantity) An invoice holds a collection of Item objects; use an array or array list to store them. In the Invoice class, implement the following methods: public void add(Item anItem) public double getDiscount()

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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I have to create a program with two classes that prompts a cashier to enter price, quantity, and  Y for a pet or N for an item; keep repeating until a price of -1 is entered i.e. use a price of –1 as a sentinel (i.e. -1 means all values have been entered). Additional Info.

A pet shop wants to give a discount to its clients if they buy one or more pets and at least five other itemsThe discount is equal to 20 percent of the cost of the other items, but not the pets.

You will need the following classes:  "item" and "invoice"

Item - used to describe an item (price, isPet and quantity); use constructor to set the item properities.

public Item(double price, boolean isPet, int quantity)

An invoice holds a collection of Item objects; use an array or array list to store them. In the Invoice class, implement the following methods:

public void add(Item anItem)

public double getDiscount()

I have to use those methods and two classes

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