namespace ConsoleApplication
public Person() { name = "John Dou"; age = 33; }
public Person(string n) { name = n; age = 18; }
public Person(string n, int a) { name = n; age = a; }
Console.WriteLine("Name: "+name+ "Age: "+ age);
public class User: Person {
public User(string n, int a) : base(n, a) {
public User(string n) : base(n) {
Console.WriteLine("Cache: "+cache);
public void CacheMinus(){
public static void Main(string[] args)
Person tom = new Person("Tom", 25);
Person vladimir = new Person("Vladimir", 44);
Person unk = new Person();
User Novy = new User("New Superuser");