ruby 子クラス

class Score
  def initialize(subject, score)
    @subject = subject
    @score = score
  end

  def get_info
    "#{@subject}/#{@score} -> #{get_result}"
  end

  private

  def get_result
    @score >=80 ? "Pass" : "Fail"
  end
end

class MathScore < Score
  def initialize(score)
  super("Math", score)
  end
end

class EnglishScore < Score
 def initialize(score)
  super("Math", score)
  end
end

class User
  def initialize(name, score)
    @name = name
    @score = score
  end

  def get_info
    "Name: #{@name}, Score: #{@score.get_info}"
  end
end

user1 = User.new("Taro", MathScore.new(70))
user2 = User.new("Jiro", EnglishScore.new(90))
puts user1.get_info
puts user2.get_info

投稿者: chosuke

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