L9: Classes, Inheritance, and Visibility

Lesson in Preparation (WIP)

This lesson is currently undergoing pedagogical drafting and development. It will soon be available with detailed visual diagrams, in-depth explanations, and its corresponding milestone in the AI Chat CLI incremental lab.

What will you learn in this lesson?

In this lesson we will explore:

• Deep Theory: Classes, primary and secondary constructors with init blocks, visibility modifiers (public, internal, protected, private), open vs final classes (closed by default), interfaces, and composition over inheritance.
• Under the Hood: How Kotlin compiles classes as final by default in Bytecode and automatically generates getters/setters for properties.
• Incremental Lab (AI Chat CLI): Encapsulating the core engine (ChatEngine) and abstracting internal chat services behind cohesive interfaces.

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