public static void Main() { try { Customer customer1 = new Customer("1", "Customer1"); Customer customer2 = new Customer("2", "Customer2"); Goods milk = new Goods("1", "Milk", 69.9); Goods eggs = new Goods("2", "eggs", 4.99); Goods apple = new Goods("3", "apple", 5.59); OrderDetail orderDetails1 = new OrderDetail("1", apple, 8.0); OrderDetail orderDetails2 = new OrderDetail("2", eggs, 2.0); OrderDetail orderDetails3 = new OrderDetail("3", milk, 1.0); Order order1 = new Order("1", customer1); Order order2 = new Order("2", customer2); order1.AddDetails(orderDetails1); order2.AddDetails(orderDetails2); order2.AddDetails(orderDetails3); //order1.AddOrderDetails(orderDetails3); OrderService os = new OrderService(); os.Add(order1); os.Add(order2); os.Delete("1"); Console.WriteLine("GetAllOrders"); //List<Order> orders = os.QueryAllOrders(); //foreach (Order od in orders) // Console.WriteLine(od.ToString()); //Console.WriteLine("GetOrdersByCustomerName:'Customer2'"); //orders = os.QueryByCustomerName("Customer2"); //foreach (Order od in orders) // Console.WriteLine(od.ToString()); //Console.WriteLine("GetOrdersByGoodsName:'apple'"); //orders = os.QueryByGoodsName("apple"); //foreach (Order od in orders) // Console.WriteLine(od.ToString()); //Console.WriteLine("GetOrdersByPrice:1000"); //orders = os.QueryByPrice(1000); //foreach (Order od in orders) // Console.WriteLine(od.ToString()); //Console.WriteLine("Remove order(id=2) and qurey all"); //os.RemoveOrder(2); //os.QueryAllOrders().ForEach( // od => Console.WriteLine(od)); } catch (Exception e) { Console.WriteLine(e.Message); } }