using System;

using System.Collections.Generic;

​

​

namespace ConsoleApplication12

{

    public class Program

    {

        public static void Main()

        {

            Queue<Customer> CustomerQueue = new Queue<Customer>();

            CustomerQueue.Enqueue(new Customer {Fname = "simran", Lname = "jeet"});

            CustomerQueue.Enqueue(new Customer { Fname = "Rae", Lname = "williams" });

            CustomerQueue.Enqueue(new Customer { Fname = "Diva", Lname = " Da Silva" });

            CustomerQueue.Enqueue(new Customer { Fname = "Jack", Lname = "Jump" });

            CustomerQueue.Enqueue(new Customer { Fname = "Christina", Lname = "Mills" });

​

            foreach(var cust in CustomerQueue)

            {

                table CurrentTable = new table();

                Listeners tablelistner = new Listeners();

                CurrentTable.tableevent += tablelistner.TableListener;

                CurrentTable.tableStatus(cust.Fname, cust.Lname);

                cust.meal();

            }

            Console.WriteLine("Everyone is full");

            Console.ReadLine();

        }

    }

    class Listeners

    {

        public void TableListener(object sender, tableEeventArgs o)

        {

            Console.WriteLine("{0} {1} got a table", o.Firstname, o.Lastname);

        }

        public void CustomerListener(object sender, customerEventArgs c)

        {

            Console.WriteLine("{0} {1} is having {2}", c.FirstNameC, c.LastNameC, c.CurrentMeal);

        }

    }

    //Create table delegate

    public delegate void tabledelegate(object sender, tableEeventArgs t);

    //Create table Event Args class

    public class tableEeventArgs : EventArgs

    {

        public string Firstname { get; set; }

        public string Lastname { get; set; }

​

        public tableEeventArgs(string firstname, string lastname)

        {

​

            this.Firstname = firstname;

            this.Lastname = lastname;

        }

​

    }

    public class table

    {

        //Create table event

        public event tabledelegate tableevent;

        public void tableStatus(string firstname, string lastname)

        {

            Console.WriteLine("Table is Open");

            tabledelegate tableStatus = tableevent;

            if (tableevent != null)

            {

                tableStatus(this, new tableEeventArgs(firstname.ToString(), lastname.ToString()));

            }

​

        }

​

    }

    public enum Meals { none, appetizer, main, desert, done };

    public delegate void customerdelegate(object sender, customerEventArgs c);

    public class customerEventArgs : EventArgs

    {

​

        public string FirstNameC { get; set; }

        public string LastNameC { get; set; }

        public string CurrentMeal { get; set; }

        public customerEventArgs(string firstname, string lastname, string MyCurrentMeal)

        {

            FirstNameC = firstname;

            LastNameC = lastname;

            CurrentMeal = MyCurrentMeal;

        }

​

    }

    public class Customer

    {

        public string Fname { get; set; }

        public string Lname { get; set; }

        public event customerdelegate customerevent;

        public void MealChanged(string firstname, string lastname, string MyCurrentMeal)

        {

            customerdelegate MealStatus = customerevent;

            if (MealStatus != null)

            {

                MealStatus(this, new customerEventArgs(firstname, lastname, MyCurrentMeal));

            }

        }

        public  void meal()

        {

            foreach (string meal in Enum.GetNames(typeof(Meals)))

            {

                Customer CurrentCust = new Customer();

                Listeners Customerlistner = new Listeners();

                CurrentCust.customerevent += Customerlistner.CustomerListener;

                CurrentCust.MealChanged(Fname,Lname,meal );

            }

        }

​

    }

​

}

​