In this chapter, we looked at the different members of a class or a blueprint. We worked with naming conventions in Python to hide attributes, took advantage of access modifiers in C#, and worked with local variables in a constructor function in JavaScript. We declared properties in different programming languages and customized their getter and setter methods.

We worked with dogs and cats and defined the shared properties of their breeds in classes and constructor functions. We also worked with mutable and immutable versions of a 3D vector.

Now that you have learned how to encapsulate data, we are ready to work with inheritance and specialization in Python, JavaScript, and C#, which are the topics of the next chapter.