a

Ruby code posted
created at 02 Jul 18:15

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class BottleNumber
  # ...
  def quantity
    if number == 0
      "no more"
    else
      number.to_s
    end
  end
  # ...
end

class BottleNumber0 < BottleNumber
  def quantity
    if number == 0
      "no more"
    else
      number.to_s
    end
  end
end
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