using System;

using System.Collections.Generic;

​

​

namespace ConsoleApplication13

{

   public class Program

    {

        public static void Main(string[] args)

        {

            Customer [] customers=new Customer [6];

            List<string> FirstNameList = new List<string> { "Joe", "Jane", "Jack", "Jeff", "Jill", "John" };

            List<string> LastNameList = new List<string> { "Smith", "Jones", "Jump", "Run", "Hill", "Winstone" };

            for (int i = 0; i <= 5;i++ )

            {

                customers[i] = new Customer();

                customers[i].FirstName = FirstNameList[i];

                customers[i].LastName = LastNameList[i];

            }

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

​

            foreach (Customer c in customers )

            {

                customer.Enqueue(c);

            }

​

            foreach (Customer c in customers )

            {

                var table = new Table();

​

                table.TableEvent += (customer.Dequeue ()).TableOpenMethod;

                table.tableOpen(c.FirstName, c.LastName);

                c.MealChangeEvent += MealChangeMethod;

                foreach (string m in c.MealList)

                {

                    c.Meal = m;

                    c.MealChange(c);

                }

            }

            Console.WriteLine("Everyone is full!");

​

        }

        public static void MealChangeMethod(object sender, MealChangeEventArgs e)

        {

            Console.WriteLine(" {0} {1} is having {2}.", e.FirstName , e.LastName, e.Meal  );

        }

    }

    public enum Meals

    {

        appetizer,

        main, 

        desert,

        done 

    }

​

    public class Customer

    {

        public string FirstName { get; set; }

        public string LastName { get; set; }

        public string[] MealList = Enum.GetNames(typeof(Meals));

        public string Meal { get; set; }

        public void TableOpenMethod(object sender, TableEventArgs e)

        {

            Console.WriteLine(" {0} {1} got a table", e.FirstName,e.LastName  );

        }

        public event MealChangeEventHandler MealChangeEvent;

         public void MealChange(Customer c)

        {

            //Console.WriteLine("meal change!");

            if (MealChangeEvent != null)

            {

                MealChangeEvent(this, new MealChangeEventArgs(c.FirstName ,c.LastName ,c.Meal ));

            }

        }

    }

   public class Table

    {

        public event TableEventHandeler TableEvent;

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        public void tableOpen(string fname,string lname)

        {

            Console.WriteLine("Table is Open!");

            if (TableEvent != null)

            {

                TableEvent(this, new TableEventArgs(fname,lname));

            }

​

        }

    }

    public delegate void TableEventHandeler(object source, TableEventArgs e);

    public delegate void MealChangeEventHandler(object source,MealChangeEventArgs e);

​

   public class TableEventArgs : EventArgs

    {

        public string FirstName { get; set; }

        public string LastName {get;set;}

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        public TableEventArgs(string Fname,string Lname)

        {

            this.FirstName  = Fname;

            this.LastName = Lname;

​

        }

    }

    public class MealChangeEventArgs :EventArgs 

    {

       public string FirstName { get; set; }

        public string LastName { get; set; }

​

        public string Meal { get; set; }

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        public MealChangeEventArgs(string Fname, string Lname,string meal)

        {

            this.FirstName  = Fname ;

            this.LastName = Lname;

            this.Meal = meal;

​

​

        }

    }

}

​