To Examples

class ShowSongController < ApplicationController
	
  def display

    n = params[:n_verses].to_i
    @song = ""

    while n > 0
      @song += n.to_s + " bottles of beer on the wall,\n"
      @song += n.to_s + " bottles of beer.\n"
      @song += "Take one down and pass it around,\n"
      n = n - 1
      @song += n.to_s + " bottles of beer on the wall.\n\n"
    end

  end
end