FizzBuzz Practice

FizzBuzz.cs

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

namespace FizzBuzz
{
    class Program
    {
        static void Main(string[] args)
        {
            var begin = new Controller();
            begin.begin();

        }


        public class Controller
        {
            public void begin()
            {
                var ui = new UserInterface();
                var b = new Business();
                ui.Display(b.StringFuzz(ui.GetLimit()));
            }


        }

        public class UserInterface
        {
            public int GetLimit()
            {
                int result=0;
                var isDone = false;
                while (!isDone)
                {
                    Console.WriteLine("How many digits do you want to evaluate?");
                    var input = Console.ReadLine();
                    if (Int32.TryParse(input, out result))
                    {
                        isDone = true;
                    }
                    else
                    {
                        Console.WriteLine("I'm sorry, that answer doesn't parse.");
                    }
                }

                return result;
            }
            
            public void Display(List<string> listed)
            {
                foreach (var item in listed)
                {
                    Console.WriteLine(item);
                }
            }
        }

        public class Business
        {
            public List<string> StringFuzz(int limit)
            {
                var pointer = 1;
                var myList = new List<string>();

                while (limit >= pointer)
                {

                    myList.Add((pointer % 3 == 0 && pointer % 5 == 0) ? "fizzbuzz" : (pointer % 3 == 0) ? "fizz" : (pointer % 5 == 0) ? "buzz" : pointer.ToString());

                    pointer++;
                }

                return myList;
            }
        }
    }
}