Method Override in C# OOPS

When derived class has the same method as in base class, we can use method override. 

public class A{

  public virtual void do(){

    Console.WriteLine("base");

  }

}

public class B:A{

  public override void do(){

    Console.WriteLine("derived");

  }

}

public class Demo{

  public static void Main(){

     B obj=new B();

     obj.do();

  }

}

OUTPUT:

derived