Anybody know why the Output of this program is like this?(using iterator in c#)

Posted by Babu on Stack Overflow See other posts from Stack Overflow or by Babu
Published on 2009-11-19T13:07:06Z Indexed on 2010/05/15 23:00 UTC
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using System;
using System.Collections;
namespace Iterator_test
{
 class Day
 {
    int days_idx = -1;
    private String[] days = { "mon", "tue", "wed","thu","fri","sat","sun" };
    public IEnumerable getdays()
    {
        days_idx++;
        yield return days[days_idx];
    }
 }
 class Program
 {
    static void Main(string[] args)
    {
        Day d = new Day();
        foreach (string day in d.getdays())
        {
            Console.WriteLine(day);
        }
    }
  }
}

Actually the output should be,

mon
tue
wed
thu
fri
sat 
sun

but its printing only "mon" as,

mon

What will be the reason?

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