#1,131 – Example of Using a Generic Dictionary

Below is an example of using a generic dictionary to count how many times each type of letter appears in a passage of text.  The keys are of type char (the letter found) and the values are of type int (# times found).

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

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

            foreach (char c in someText)
                if (!charCounter.ContainsKey(c))
                    charCounter.Add(c, 1);
                    // charCounter[c] is of type int,
                    //   c is of type char

            Console.WriteLine("Found {0} unique characters", 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 .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #1,131 – Example of Using a Generic Dictionary

  1. Pingback: Dew Drop – July 3, 2014 (#1808) | Morning Dew

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