using System;
using System.Collections;
using System.Linq;

namespace ConsoleApplication12
{
    class Program
    {
        static void Main(string[] args)
        {
            Myclass myclass = new Myclass();
            ArrayList arrayList = new ArrayList { new User(), new User() };
            Array ss = myclass.Get<User>(arrayList);
        }
    }

    public class Myclass
    {
        public Array Get<T>(ArrayList arrayList)
        {
            return arrayList.Cast<T>().ToArray<T>();

        }
    }

    public class User
    {
        public string Name { get; set; }
    }

}