#1,132 – Using a SortedDictionary

You can use a SortedDictionary<T1,T2> instead of a Dictionary<T1,T2> when you’d like entries sorted in the dictionary by the value of their keys.  Below is an example where we count how many times each letter of the alphabet is found in a particular string.

            string someText = "One cannot think well, love well, " +
                "sleep well, if one has not dined well.";

            SortedDictionary<char, int> charCounter = new SortedDictionary<char, int>();

            foreach (char c in someText)
                if (char.IsLetter(c))
                    char cLower = char.ToLower(c);
                    if (!charCounter.ContainsKey(cLower))
                        charCounter.Add(cLower, 1);

            Console.WriteLine("Found {0} unique letters", charCounter.Keys.Count);

            foreach (KeyValuePair<char, int> kvp in charCounter)
                Console.WriteLine("[{0}] - {1} instances", kvp.Key, kvp.Value);


About Sean
Software developer in the Twin Cities area, passionate about software development and sailing.

One Response to #1,132 – Using a SortedDictionary

  1. Pingback: Dew Drop – July 7, 2014 (#1809) | Morning Dew

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: