class Jdt < Dt
end
class Jdt < Dt
  def to_print
    if @year > 1988
      gengo = "Heisei"
      jyear = @year - 1988
    elsif @year > 1925
      gengo = "Showa"
      jyear = @year - 1925
    elsif @year > 1911
      gengo = "Taisho"
      jyear = @year - 1911
    elsif @year > 1867
      gengo = "Meiji"
      jyear = @year - 1867
    else
      gengo = "out-of-range"
      jyear = @year
    end
    gengo+jyear.to_s+"Nen"+@month.to_s+"Gatsu"+@day.to_s+"Nichi"
  end
end
class Jdt < Dt
  def initialize(g,y,m,d)
    if g == "H"
      year = y+1988
    elsif g == "S"
      year = y+1925
    elsif g == "T"
      year = y+1911
    elsif g == "M"
      year = y+1867
    else
      year = y
    end
    @year = year
    @month = m
    @day = d
  end
end