An active repository used to consolidate knowledge acquired from advanced tutoring (Píldoras Informáticas) and structured AI-guided challenges. This collection showcases a strong, foundational grasp of Object-Oriented Programming (OOP) principles, core Java SE concepts, and the initial development of Graphical User Interfaces (Swing). Every exercise prioritizes clean code practices, modularity, and readability, reflecting a commitment to becoming a professional Back-End developer.