This class creates a book with a user-generated title. The title method will then take the lowercase title string and capitalize only the important words.

Book Class

class Book
  attr_accessor :title

  def title
    low_words = ['the', 'in', 'a', 'an', 'and' ]
    array_words = @title.split
    first_word = array_words[0].split(//)
    first_word[0].upcase!
    array_words[0] = first_word.join
    joined_words = []
    array_words.each do |word|
        if !low_words.include?(word)
        char_array = word.split(//)
        char_array[0].upcase!
        joined_words << char_array.join
        else
        joined_words << word
        end
    end
    joined_words.join(" ")
  end
end