Additional practice Edition

edition

class Edition
# :book, :year_of_publishing, :number_of_pages
  attr_writer :book, :year_of_publishing, :number_of_pages
  attr_reader :book, :year_of_publishing, :number_of_pages
 
 def initialize (book = nil, year_of_publishing = nil, number_of_pages = nil)
 	@book =book.to_s
 	@year_of_publishing=year_of_publishing.to_i
 	@number_of_pages = number_of_pages.to_i

end

def output
puts "'#{book}', #{year_of_publishing}, #{number_of_pages} pages"

end

end
#edition1=Edition.new("Pride and Prejudice", 1813, 820)
#edition1.output