Language: Java

The order processing system, each order must have transaction id(long), date time(calender). 2 types of other in-store order and online order. Each store order also keeps: register id, which register was used to process the transaction & store location.

Online order has a different set of data requirement: shipping/biling address, credit card info(number, expire mont, expire year)

Each order has one or more order line (Item description, quantity, unit price)

to support the receipt generator an order must implements the following interface:

public interface ReceiptGenerator {

public double receiptTotalAmount();

public String recieptDetails();

}

receiptTotalAmount: should calculate the total amount for the order and recieptDetails: should produce a string from of the entire order details(all order lie for that order, store ifo, shipping address if its an online purchase

OrderProcessing application class should create one in store order and one online.

Each order should have atleast 5 order line, then should make use of the ReceiptGeneraor interface print the receiptTotalAmoung and receiptDetails.

All class should allow initialization of objects via constructor paramenter and member fields should have the necessary accessor and mutator.