Languages Every language teaches you something. These are the notes. Working notes from learning and using programming languages: Java, C, Python, and whatever comes next. Not cleaned-up tutorials. The real notes, written while figuring it out. Java Python Java Generic Types in Java How Java generics work across interfaces, classes, and multi-type scenarios, with real examples. Covers type parameters, bounded wildcards, and the patterns that make reusable code actually work without casting everything. Python Python notes coming soon.