using System;

using System.Collections.Generic;

​

public class Program {

 public static string[] wordArray = null;

 public static void Main() {

  Dictionary < string, int > wordsAndOccurancesReturned = GetWordsFrequencyCount("My bike and my book");

  Dictionary < string, int > wordsLengthFrequencyReturned = GetWordsLengthFrequencyCount("My bike and my book");

  Console.WriteLine("GetWordsFrequencyCount:");

  PrintDictionary(wordsAndOccurancesReturned);

  Console.WriteLine("GetWordsLengthFrequencyCount:");

  PrintDictionary(wordsLengthFrequencyReturned);

​

 }

​

 public static Dictionary < string, int > GetWordsFrequencyCount(string text) {

  Dictionary < string, int > wordsAndOccurances = new Dictionary < string, int > ();

  wordArray = text.Split(' ');

​

  foreach(string word in wordArray) {

      string currentWord = word.ToLower();

   if (!wordsAndOccurances.ContainsKey(currentWord)) {

    wordsAndOccurances.Add(currentWord, CountOccurances(currentWord));

   }

  }

​

  return wordsAndOccurances;

 }

​

 public static Dictionary < string, int > GetWordsLengthFrequencyCount(string text) {

  wordArray = text.Split(' ');

  Dictionary < string, int > wordsLengthFrequency = new Dictionary < string, int > ();

​

  foreach(string word in wordArray) {

   if (!wordsLengthFrequency.ContainsKey(word.Length.ToString())) {

    wordsLengthFrequency.Add(word.Length.ToString(), CountOccurancesOfLenth(word));

   }

  }

​

  return wordsLengthFrequency;

 }

​

 public static int CountOccurances(string word) {

  int count = 0;

  for (int i = 0; i < wordArray.Length; i++) {

      string currentWord = wordArray[i];

   if (word.ToLower().Equals(currentWord.ToLower()))

    count++;

  }

  return count;

​

 }

​

 public static int CountOccurancesOfLenth(string word) {

  int count = 0;

  for (int i = 0; i < wordArray.Length; i++) {

   string currentWord = wordArray[i];

   if (word.Length == currentWord.Length)

    count++;

  }

  return count;

​

 }

​

 public static void PrintDictionary(Dictionary < string, int > wordsAndOccurancesReturned) {

  foreach(var entry in wordsAndOccurancesReturned) {

   Console.WriteLine(string.Format(" {0}: {1}", entry.Key, entry.Value));

  }

 }

}