gistfile1.cs

/// <summary>
/// This method takes in a file path and returns the string with the most repeated characters in the txt file.
/// </summary>
/// <param name="filePath">This is the path to the txt file</param>
/// <returns>Word with the most repeated characters</returns>
private string findWordWithMostRepeatedCharacters(string filePath)
{

    var inputStr = getTextFromFile(filePath);

    //Remove punctuation
    inputStr = new string(inputStr.Where(c => !char.IsPunctuation(c)).ToArray());
    //Split the input string up into individual words
    var words = inputStr.Split(' ');
    var wordWithMostRepeatedChars = "";

    Tuple<char, int> mostRepeatedCharactersInWord = null;
    Tuple<char, int> tempRepeatedCharactersInWord;
    foreach (var word in words)
    {
        //If the word is null, empty or whitespace ignore it.
        if (String.IsNullOrWhiteSpace(word))
            continue;
        //Group the current word string by character and select the tuple containing the actual character and count.  Then sort by the highest count descending.
        tempRepeatedCharactersInWord = word.ToLowerInvariant().GroupBy(x => x).Select(x => new Tuple<char, int>(x.Key, x.Count())).OrderByDescending(x => x.Item2).First();

        //Compare the character count to the stored value
        if (mostRepeatedCharactersInWord == null || tempRepeatedCharactersInWord.Item2 > mostRepeatedCharactersInWord.Item2)
        {
            mostRepeatedCharactersInWord = tempRepeatedCharactersInWord;
            wordWithMostRepeatedChars = word;
        }
    }

    return wordWithMostRepeatedChars;
}

/// <summary>
/// This method loads the contents of a file into a string.
/// </summary>
/// <param name="filePath">This is the path to the txt file</param>
/// <returns>The string representation of the content of the file.</returns>
private string getTextFromFile(string filePath)
{
    var text = "";
    try
    {
        StreamReader streamReader = new StreamReader(filePath);
        text = streamReader.ReadToEnd();
        streamReader.Close();
    }
    catch (IOException ioe)
    {
        Console.WriteLine("Unable to read file.");
    }
    catch (OutOfMemoryException oom)
    {
        Console.WriteLine("This file is too big!");
    }

    return text;
}