GetArrayOfFirstTenIntegersYield.cs

using System;
using System.Collections.Generic;
class Program
{
    static void Main()
    {
        {
            var nums = GetArrayOfFirstTenIntegers();
            foreach (int n in nums)
            {
                Console.WriteLine(n);
            }
        }
        Console.WriteLine();
        {
            var nums = GetArrayOfFirstTenIntegersYield();
            foreach (int n in nums)
            {
                Console.WriteLine(n);
            }
        }
    }
    static IEnumerable<int> GetArrayOfFirstTenIntegers()
    {
        Console.WriteLine("GetArrayOfFirstTenIntegers called");
        List<int> nums = new List<int>();
        for (int num = 0; num <= 5; num++)
        {
            Console.WriteLine("###");
            nums.Add(num);
        }
        return nums;
    }
    static IEnumerable<int> GetArrayOfFirstTenIntegersYield()
    {
        Console.WriteLine("GetArrayOfFirstTenIntegersYield called");
        for (int num = 0; num <= 5; num++)
        {
            Console.WriteLine("***");
            yield return num;
        }
    }
}