Variabel tidak nol jika menggunakan objek json optstring
/** Return the value mapped by the given key, or {@code null} if not present or null. */
public static String optString(JSONObject json, String key)
{
// http://code.google.com/p/android/issues/detail?id=13830
if (json.isNull(key))
return null;
else
return json.optString(key, null);
}
Brave Beaver