bottlesofbeer.rb

class BottlesOfBeer
  def pluralize? n
    if n != 1
      "bottles"
    else
      "bottle"
    end
  end

  def count_off
    puts "How many bottles of beer have you got? "
    bottles = gets.chomp.to_i
    bottles.downto(0) do |number|
      if number == 0
        puts "No more bottles of beer on the wall, no more bottles of beer! Go to the store and buy some more, #{bottles} bottles of beer on the wall!"
      else
        puts "#{number} #{pluralize?(number)} of beer on the wall, #{number} #{pluralize?(number)} of beer! Take one down, pass it around, #{number-1} #{pluralize?(number-1)} of beer on the wall!"
      end
    end
  end
end
 
BottlesOfBeer.new.count_off