title: I can't extract NSDictionary values using swift
body: <p>I'm having hard time extracting the values from an NSDictionary object after I had parsed it from a json data-object. ![enter image description here][1]</p>
  
  <pre><code>var stationsInfo: NSArray = stationsDictionary["stations"]! as NSArray
              for aStation in stationsInfo{
                  //parse the information
                  var station = aStation as NSDictionary
                  println("next")
                  var example: NSDictionary = ["key": "val", "key2": "val2", "key3": "val3"]
                  var ex: String = example["key2"] as String
                  println(station)
                  var age_in_days : Double         = station["age_in_days"] as Double
                  var hight_normal: Double         = station["height_nom"]  as Double
                  var hight_over  : Double         = station["height_ovr"]  as Double
                  var latitude: CLLocationDegrees  = station["lat"]         as Double
                  var longitude: CLLocationDegrees = station["lon"]         as Double
                  var station_id  : Int            = station["station_id"]  as Int
  </code></pre>
  
  <p>The var ex ends up equal to "val2" as it is suppose to work, but I keep getting strange errors when I try to get the values stored in the station dictionary.</p>
  
  <p>This happens despite that the value of station is as follows</p>
  
  <blockquote>
    <p>{
        "age_in_days" = 1401753600;
        "height_nom" = "13.5";
        "height_ovr" = "14.0";
        lat = "24.084082";
        lon = "89.023476";
        "station_id" = 1;
    }</p>
  </blockquote>