using System;

using System.Collections.Generic;

using System.Text.RegularExpressions;

​

namespace StringBuilderDemo

{

​

public class Program

{

    private static Dictionary<string, int> GetWordsFrequencyCount(string text)

    {

        var words = new Dictionary<string, int>(StringComparer.CurrentCultureIgnoreCase);

​

        var wordPattern = new Regex(@"\w+");

​

        foreach (Match match in wordPattern.Matches(text))

        {

            int currentCount=0;

            words.TryGetValue(match.Value, out currentCount);

​

            currentCount++;

            words[match.Value] = currentCount;

        }

        return words;

    }

    private static Dictionary<int, int> GetWordsLengthFrequencyCount(string text)

    {

        var wordLengths = new Dictionary<int, int>();

​

        var wordPattern = new Regex(@"\w+");

​

        foreach (Match match in wordPattern.Matches(text))

        {

            int currentCount=0;

            wordLengths.TryGetValue(match.Value.Length, out currentCount);

​

            currentCount++;

            wordLengths[match.Value.Length] = currentCount;

        }

        return wordLengths;

    }

    public static void Main()

    {

        string text = "My bike and my book";

        var dictionaryWords = GetWordsFrequencyCount(text);

​

        var dictionaryLengths = GetWordsLengthFrequencyCount(text);

​

        foreach (KeyValuePair<string, int> kvp in dictionaryWords)

        {

            Console.WriteLine("\"{0}\" : {1}", kvp.Key, kvp.Value);

        }

​

        foreach (KeyValuePair<int, int> kvp in dictionaryLengths)

        {

            Console.WriteLine("\"{0}\" : {1}", kvp.Key, kvp.Value);

        }

    }

}    

}