private static void SetPredifinedData()
{
Predefined predefined = new Predefined();
SaleItems = new List <SaleItem>();
ShoppingItems = predefined.GetAllItems();
Coupons = predefined.GetAllCoupons();
}
public CashRegister()
{
Predefined predefined = new Predefined();
_saleItems = new List <SaleItem>();
_itemsInStore = predefined.GetAllItems();
_couponsInStore = predefined.GetAllCoupons();
_total = 0;
}