C# OOP Override And New

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace overrideAndNew
{
    // Object Orianted Programing
    // Override and New

    // class mine
    class parson
    {
        virtual public void msg()
        {
            Console.WriteLine("i am a parson");
        }
    }

    // class inheritance
    class programming : parson
    {
        // new mithod
        public new void msg()
        {
            Console.WriteLine("i am programming");
        }
    }

    // class inheritance
    class doctor:parson
    {
        // Override mithod
        public override void msg()
        {
            Console.WriteLine("i am a doctor");
        }
    }

    // king class
    class Program
    {
        static void Main(string[] args)
        {
            programming prog = new programming();
            doctor doc = new doctor();

            // Line One
            Console.Write("Line One ");
            parson mine = new programming();
            mine.msg(); // this Write is Parson

            // Line Tow
            Console.Write("Line Tow ");
            mine = new doctor();
            mine.msg(); // this Write is Doctor

            // Line Three
            Console.Write("Line Three ");
            parson test2 = new doctor();
            test2.msg(); // this Write is Doctor

            // Line Four
            Console.Write("Line Four ");
            test2 = new programming();
            test2.msg(); // this Write is Parson

            Console.ReadKey();
        }
    }
}