cl1.rb

cl1.rb

class Image
	attr_accessor :data
   	def initialize (data)
     	@data = data  
   	end

    def output
      @data.each do |sub|
        sub.each do |cell|
          print cell
        end
        puts "\n"
      end
    end

 end

  image = Image.new([[0,0,0,0],
  				[0,1,0,0],
  				[0,0,0,1],
  				[0,0,0,0]])
  image.output