using System;

public class Program

{

    public static void Main()

    {

        customer[] cust=new customer[3];

        cust[0] = new customer();

        cust[0].Firstname="Rohita";

        cust[0].Lastname="Chauhan";

        cust[0].order = new order[3];

        cust[0].order[0] = new order();

        cust[0].order[0].orderdesc = "mobile";

        cust[0].order[0].prize=200;

        cust[0].order[0].qty=2;

        cust[0].order[1] = new order();

        cust[0].order[1].orderdesc = "microwave";

        cust[0].order[1].prize=100;

        cust[0].order[1].qty=1;

        cust[1] = new customer();

        cust[1].Firstname="Hardik";

        cust[1].Lastname="Shah";

        cust[1].order = new order[3];

        cust[1].order[0] = new order();

        cust[1].order[0].orderdesc = "mattress";

        cust[1].order[0].prize=300;

        cust[1].order[0].qty=1;     

        cust[1].order[1]=new order();

        cust[1].order[1].orderdesc = "refrigerator";

        cust[1].order[1].prize=400;

        cust[1].order[1].qty=5;

        cust[2] = new customer();

        cust[2].Firstname="Sneha";

        cust[2].Lastname="Patel";

        cust[2].order = new order[3];

        cust[2].order[0] = new order();

        cust[2].order[0].orderdesc = "watch";

        cust[2].order[0].prize=250;

        cust[2].order[0].qty=4;

        cust[2].order[1]=new order();

        cust[2].order[1].orderdesc = "Air Coonditioner";

        cust[2].order[1].prize=350;

        cust[2].order[1].qty=3;

        for(int i=0;i<cust.Length;i++)

        {

            if(cust[i]!=null)

            {

                Console.WriteLine("");

                Console.WriteLine("{0}{1}",cust[i].Firstname,cust[i].Lastname);

            }

            for(int j=0;j<cust[i].order.Length;j++)

            {

                if(cust[i].order[j]!=null)

            {

                Console.WriteLine("{0}-${1}-{2}",cust[i].order[j].orderdesc,cust[i].order[j].prize,cust[i].order[j].qty);

            }

            }}

        }

        }

    public class customer

    {

        public string Firstname;

        public string Lastname ;

​

        public order[] order;

    }

            public class order

            {

                public string orderdesc;

                public int prize;

                public int qty;

            }

​

​