uptc-develop/programacion_ii ? reverse-engineered prompt

Build me a simple Java project for a case study assignment.

I want it to be clean and easy to run, with the code organized in a sensible way and ready for me to keep extending later. If you need to, look up current Java best practices or docs online. Since this looks like a school project, keep it straightforward and practical, with enough structure to show good programming habits without making it overcomplicated.

Please set it up so I can open it in an IDE, run it without much hassle, and understand what each part does. If anything is unclear from the project files, make reasonable assumptions and keep the result focused on a useful academic example.