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How to use override concept using virtual keyword in C#

Anonymous User 1928 03-Jan-2016
I want to use use  override  concept using  virtual  keyword in C#.how to do this please help me.
c# c#  oops 
Updated on 03-Jan-2016
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Anonymous User

Anonymous User

03-Jan-2016

 we know overriding is the concepts of OOPS which is implement using abstract method and virtual class keyword . for more description goto  https://msdn.microsoft.com/en-us/library/ebca9ah3.aspx .
 Let's see on virtual and override keywords in C# .

try to how can do show below

using System;
namespace Verriding
{
    class first
    {
        public virtual void method() { Console.WriteLine("called class first method()"); }
    }
    class second : first
    {
        public override void method() { Console.WriteLine("called class second method()"); }
    }
    class third : second
    {
        public override void method() { Console.WriteLine("called class third method()"); }
    }
    class Program
    {
        static void Main(string[] args)
        {
            first a = new first();
            second b = new second();
            third c = new third();
            a.method(); // output --> "first::method()"
            b.method(); // output --> "second::method()"
            c.method(); // output --> "third::method()"
           
            a = new second();
            a.method(); // output --> "second::method()"
            b = new third();
            b.method(); // output --> "third::method()"
            Console.ReadKey();
        }
    }
}
How to use  override  concept using  virtual  keyword in C#
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