How to print 1 to 100 without any looping using C#

Question

I am trying to print numbers from 1 to 100 without using loops, using C#. Any clues?

Answer 1

Recursion maybe?

public static void PrintNext(i) {
    if (i <= 100) {
        Console.Write(i + " ");
        PrintNext(i + 1);
    }
}

public static void Main() {
    PrintNext(1);
}

Answer 2

Console.Out.WriteLine('1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100');

Answer 3

Method A:

Console.WriteLine('1');
Console.WriteLine('print 2');
Console.WriteLine('print 3');
...
Console.WriteLine('print 100');

Method B:

func x (int j)
{
  Console.WriteLine(j);
  if (j < 100)
     x (j+1);
}

x(1);

Answer 4

Enumerable.Range(1, 100)
    .Select(i => i.ToString())
    .ToList()
    .ForEach(s => Console.WriteLine(s));

Not sure if this counts as the loop is kind of hidden, but if it's legit it's an idiomatic solution to the problem. Otherwise you can do this.

    int count = 1;
top:
    if (count > 100) { goto bottom; }
    Console.WriteLine(count++);
    goto top;
bottom:

Of course, this is effectively what a loop will be translated to anyway but it's certainly frowned upon these days to write code like this.

Answer 5

Just for the ugly literal interpretation:

Console.WriteLine("numbers from 1 to 100 without using loops, ");

(you can laugh now or later, or not)

Answer 6

namespace ConsoleApplication2 {
    class Program {
        static void Main(string[] args) {
            Print(Enumerable.Range(1, 100).ToList(), 0);
            Console.ReadKey();

        }
        public static void Print(List<int> numbers, int currentPosition) {
            Console.WriteLine(numbers[currentPosition]);
            if (currentPosition < numbers.Count - 1) {
                Print(numbers, currentPosition + 1);
            }
        }
    }
}