ruby on rails - Parent and child class construction

Question

I was just checking to see if I was writing my code correctly, for this checking class, and sure enough the checking class was accessing Account correctly. I just had to initialize it correctly.

class Checking < Account

    def 
       super
    end

    def balance()
        @balance = principal * (1 + interest_rate / 365) ** 365
    end

end

Answer 1

You missed an initialize. Change:

class Checking < Account
  def 
     super
  end

  def balance()
    @balance = principal * (1 + interest_rate / 365) ** 365
  end
end

to

class Checking < Account
  def initialize
     super
  end

  def balance
    @balance = principal * (1 + interest_rate / 365) ** 365
  end
end

And your next issue will be that Checking#new (initialize) doesn't take parameters, but you call super and Account#new expects one argument.