Method Overriding/virtual method C#

using System;
public class Base{
    public virtual void func(){
        Console.WriteLine("Base Class method...");
    }
}
public class Derived: Base
{
    public override void func()
    {
        base.func();// 'base.func()' is called to get base class methode in derived class
        Console.WriteLine("Derived class method...");
    }
}
public class Program
{
    public static void Main()
    {
        Derived d = new Derived();
        d.func();
    }
}