using System;
using System.Collections.Generic;
using System.Threading;
using System.IO;
using System.Text;
using System.Threading.Tasks;

namespace IMJunior
{
    class User
    {

    }

    public class Program
    {
        static void Main()
        {
            Repository<User> users = new Repository<User>();
            users.GetAll();

            UserRepository repo = new UserRepository();
        }
    }

    public class Repository<T>
    {
        private T[] _data;

        public T GetById(int id)
        {
            return _data[id];
        }

        public T[] GetAll()
        {
            return _data;
        }
    }

    class UserRepository : Repository<User>
    {
        public User GetByName()
        {
            throw new NotImplementedException();
        }
    }

}