static void Main(string[] args)
{
Person p = new Person("Tobias", "Grundtvig", 42);
Console.WriteLine("Reference: " + p);
Console.WriteLine("First name: " + p.getFirstName());
Console.WriteLine("Last name: " + p.getLastName());
Console.WriteLine("Age: " + p.getAge());
p.Birthday();
Console.WriteLine("Name: " + p.getFullName());
Console.WriteLine("Age: " + p.getAge());
}
