using System;

using System.IO;

public class Program

{

    public static void Main()

    {

        try

            {

                printMethod.print();

            }

            catch(Exception ex)

            {

                Console.WriteLine(ex);

                Console.ReadLine();

            }

    }

    public static class printMethod

    {

        public static void print()

        {

            customer[] customers = new customer[2];

            customers[0] = new customer() { firstName = "Rae", lastName = "William", Orders = new Order() };

            customers[0].Orders = new Order() { Quantity = 1, prices = 25000 };

            customers[0].Orders.vehicle = new vehicles(new automobile()) { wheels = 4, horse_Power = 450, desc = "Automobile" };

​

​

            customers[1] = new customer() { firstName = "Wen", lastName = "Ni", Orders = new Order() };

            customers[1].Orders = new Order() { Quantity = 1, prices = 20000 };

            customers[1].Orders.vehicle = new vehicles(new motorcycle()) { wheels = 2, horse_Power = 200, desc = "Motorcycle" };

​

            foreach (var cust in customers)

            {

                if (cust == null) continue;

                using (StreamWriter WriteFile = new StreamWriter("C:\\Simran\\BridgingProgram\\C#\\output.txt", true))

                {

​

                    WriteFile.WriteLine("\n");

                    WriteFile.WriteLine("{0} {1}", cust.firstName, cust.lastName);

                    WriteFile.WriteLine("----------------------------------------------------------------");

                    WriteFile.WriteLine(" Quantity  Description HorsePower Wheels capacity   Price");

                    WriteFile.WriteLine(" {0,3}  {1,15} {2,7} {3,8} {4,8}  {5,10:C}", cust.Orders.Quantity, cust.Orders.vehicle.desc, cust.Orders.vehicle.horse_Power, cust.Orders.vehicle.wheels, cust.Orders.vehicle.cargoCap(), cust.Orders.prices);

                    WriteFile.WriteLine("----------------------------------------------------------------");

                    WriteFile.Close();

                }

​

            }

        }

    }

        public class customer

        {

            public string firstName { get; set; }

            public string lastName { get; set; }

            public Order Orders { get; set; }

​

​

        }

        public class Order

        {

            public int Quantity { get; set; }

            public int prices { get; set; }

            public vehicles vehicle { get; set; }

        }

        public interface Ivehicle

        {

            double cargoCapacity();

​

        }

        public class vehicles

        {

​

            public int wheels { get; set; }

            public string desc { get; set; }

            public double horse_Power { get; set; }

           // public double capacity { get; set; }

           public vehicles()

            { }

            private readonly Ivehicle _vehicle;

            public vehicles(Ivehicle vehicle)

            {

                this._vehicle = vehicle;

            }

            public double cargoCap()

            {

               return  this._vehicle.cargoCapacity();

            }

​

        }

​

        public class motorcycle : vehicles, Ivehicle

        {

​

            //responisibility - Calc motorcycle capacity

            public double cargoCapacity()

            {

​

                return (1.1 * (2.2 * 2.2) * 5) * 2;

​

            }

​

        }

        public class automobile:vehicles , Ivehicle

        {

​

            //responisibility - Calc automobile capacity

            public double cargoCapacity()

            {

​

                return 2.5 * 5.3 * 3.4;

​

            }

​

        }

}