FAQ: Object-Oriented Programming II - Private! Keep Out!

This community-built FAQ covers the “Private! Keep Out!” exercise from the lesson “Object-Oriented Programming II”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Learn Ruby

FAQs on the exercise Private! Keep Out!

There are currently no frequently asked questions associated with this exercise – that’s where you come in! You can contribute to this section by offering your own questions, answers, or clarifications on this exercise. Ask or answer a question by clicking reply (reply) below.

If you’ve had an “aha” moment about the concepts, formatting, syntax, or anything else with this exercise, consider sharing those insights! Teaching others and answering their questions is one of the best ways to learn and stay sharp.

Join the Discussion. Help a fellow learner on their journey.

Ask or answer a question about this exercise by clicking reply (reply) below!

Agree with a comment or answer? Like (like) to up-vote the contribution!

Need broader help or resources? Head here.

Looking for motivation to keep learning? Join our wider discussions.

Learn more about how to use this guide.

Found a bug? Report it!

Have a question about your account or billing? Reach out to our customer support team!

None of the above? Find out where to ask other questions here!

Why does def id not have to define parameters in the def statement (like def initialize)? When is it appropriate to do so?


In Ruby, return is implicit, which means variables can be given a method wrapper and be returned as though they were directly referred. The parameter is only needed if the method needs it, otherwise, none.

Thanks - does that mean I can not directly refer to a parameter in the method that are not listed in the ()?

If there is no parameter then there is no local variable in the method. Am I reading your question correctly?