[Conny Westh]

Så här skulle motsvarande program se ut i C# med de metoder och properties jag var ute efter:

using System;
using System.Collections.Generic;

namespace Test
{
	public class Person
	{
		private string _FirstName = "";
		public string FirstName
		{
			get { return _FirstName; }
			set { _FirstName = value; }
		}

		private string _LastName = "";
		public string LastName
		{
			get { return _LastName; }
			set { _LastName = value; }
		}

		public Person(string FirstName, string LastName)
		{
			this.FirstName = FirstName;
			this.LastName = LastName;
		}

		public override string ToString()
		{
			return String.Format("{0} {1}",this.FirstName, this.LastName);
		}
	}
}

using System;
using System.Collections.Generic;


namespace Test
{
	class PersonAge : Person
	{
		private int _BirthYear;

		public int BirthYear
		{
			get { return _BirthYear; }
			set { _BirthYear = value; }
		}

		public int Age
		{
			get 
			{
				return (2012 - BirthYear); 
			}
		}

		public PersonAge(string FirstName, string LastName, int BirthYear)
			: base(FirstName, LastName)
		{
			this.BirthYear = BirthYear;
		}

		public override string ToString()
		{
			return String.Format("{0} ({1} år)", base.ToString(), this.Age);
		}
	}
}

using System;
using System.Collections.Generic;


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

			List<Person> personer = new List<Person>();

			personer.Add(new Person("Fredrik", "Framberg"));
			personer.Add(new Person("Greta", "Gavelstam"));
			personer.Add(new Person("Urban", "Urberg"));
			personer.Add(new Person("Anna", "Ambtesteg"));

			Console.WriteLine("Visa alla Person i personer...");
			foreach (Person person in personer)
			{
				Console.WriteLine(person);
			}

			List<PersonAge> personAges = new List<PersonAge>();
			personAges.Add(new PersonAge("Henrik", "Hammarberg", 1956));
			personAges.Add(new PersonAge("Kristina", "Karlestam", 1983));
			personAges.Add(new PersonAge("Hans", "Hallin", 1967));
			personAges.Add(new PersonAge("Berit", "Bygdén", 1974));

			Console.WriteLine();
			Console.WriteLine("Visa alla PersonAge i personAges...");
			foreach (PersonAge person in personAges)
			{
				Console.WriteLine(person);
			}

			Console.WriteLine();
			Console.WriteLine("Kopiera alla PersonAge till personer...");
			foreach (Person person in personAges)
			{
				personer.Add(person);
			}

			Console.WriteLine();
			Console.WriteLine("Visa alla Person och PersonAge i personer...");
			foreach (Person person in personer)
			{
				Console.WriteLine(person);
			}

			Console.ReadKey();
		}
	}
}

Visa alla Person i personer...
Fredrik Framberg
Greta Gavelstam
Urban Urberg
Anna Ambtesteg

Visa alla PersonAge i personAges...
Henrik Hammarberg (56 år)
Kristina Karlestam (29 år)
Hans Hallin (45 år)
Berit Bygdén (38 år)

Kopiera alla PersonAge till personer...

Visa alla Person och PersonAge i personer...
Fredrik Framberg
Greta Gavelstam
Urban Urberg
Anna Ambtesteg
Henrik Hammarberg (56 år)
Kristina Karlestam (29 år)
Hans Hallin (45 år)
Berit Bygdén (38 år)