static void Main(string[] args)
{
Product product1 = new Product("12345", "laptop-dell");
MobileController order1 = new MobileController(
new DBInventoryService(),
new ICICIPaymentService(),
new FedExShippingService());
order1.orderProduct(
product1, 120, 2345, 112,
new Address("1-1", "", "", ""));
Product product2 = new Product("12346", "mobile-oppo");
DesktopController order2 = new DesktopController(
new DBInventoryService(),
new PayPalPaymentService(),
new FedExShippingService());
order2.orderProduct(product2, 120, 2341, 111,
new Address("1-2", "", "", ""));
}