> For the complete documentation index, see [llms.txt](https://cs61b-2.gitbook.io/cs61b-textbook-2025/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cs61b-2.gitbook.io/cs61b-textbook-2025/10.-inheritance-ii-extends-casting-higher-order-functions.md).

# 10. Inheritance II: Subtype Polymorphism, Comparators, Comparables, Generic Functions

This section covers inheritance through extends, along with encapsulation, casting, and higher order functions. Its contents correspond to Lecture 9.

### Video Playlist

{% embed url="<https://www.youtube.com/watch?v=0qw-12Bp4Ew>" %}