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class Die def roll rand(6) + 1 end end class Dice def initialize @die1 = Die.new @die2 = Die.new end def roll @die1.roll + @die2.roll end #I don't like the nils here but this works for now. #if anyone can clean this up, go for it :) def build_histogram(number) @histogram = [nil,nil,0,0,0,0,0,0,0,0,0,0,0] number.times { @histogram[roll] += 1 } end def print_histogram if @histogram for index in 2..12 print "#{index}\t| " print "*" * @histogram[index] print "\n" end else puts "No histogram to print" end end end d = Dice.new d.build_histogram(100) d.print_histogram puts d.build_histogram(400) d.print_histogram