[Vala] Problem with Gee

[Nicolas <c r n a wanadoo fr>]

Hi,

I'm trying to use the Gee library, but i have a problem;
This is the code taken from the vala site:

using Gee;

static int main (string[] args) {

   var map = new HashMap<string, int> ();
   map.set ("one", 1);
   map.set ("two", 2);
   map.set ("three", 3);
   map["four"] = 4;            // same as map.set ("four", 4)
   map["five"] = 5;
   foreach (string key in map.keys) {
       stdout.printf ("%d\n", map[key]);       // same as map.get (key)
   }

   return 0;
}

My question is, why when i execute this, the result is:
4
3
1
2
5

And not:
1
2
3
4
5

Thanks in advance for your response.
Nicolas.