I find it funny that he said he didn't know what to pick between 5 types of IDictionary in C#. * Hashtable * SortedList * SortedList<TKey, TValue> * Diction

I find it funny that he said he didn't know what to pick between 5 types of IDictionary in C#. * Hashtable * SortedList * SortedList<TKey, TValue> * Dictionary<TKey, TValue> * ConcurrentDictionary<TKey, TValue> I don't even know C# (just Java), yet I know that you'd probably want to use Dictionary<TKey, TValue> most of the time.