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How to Decalre Pure virtual method in c#

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How to Decalre Pure virtual method in c#

Mahendra Gapat

Mahendra Gapat

10yAsked Jan 16, 2016, 1:32 AM3.1kLearn iOS Programming

i nedd expalination with syntax and example

1 Reply

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Rajeesh Menoth10y ago
Hi,

Example :
    using System;
    namespace Polymorphism
    {
     class A
     {
     public virtual void Test() { Console.WriteLine("A::Test()"); }
     }

     class B : A
     {
     public override void Test() { Console.WriteLine("B::Test()"); }
     }

     class C : B
     {
     public override void Test() { Console.WriteLine("C::Test()"); }
     }

     class Program
     {
     static void Main(string[] args)
     {

     A a = new A();
     B b = new B();
     C c = new C();
     a.Test(); // output --> "A::Test()"
     b.Test(); // output --> "B::Test()"
     c.Test(); // output --> "C::Test()"

     a = new B();
     a.Test(); // output --> "B::Test()"

     b = new C();
     b.Test(); // output --> "C::Test()"

     Console.ReadKey();
     }
     }
    }
Refer the following article:

http://www.c-sharpcorner.com/UploadFile/3d39b4/virtual-method-in-C-Sharp/

http://www.dotnet-tricks.com/Tutorial/csharp/U33Y020413-Understanding-virtual,-override-and-new-keyword-in-C