Sorrawit developed foundational features for the okcza515/OOAD2568 repository, focusing on establishing a scalable codebase in Java. He implemented a starter greeting application to bootstrap the project and created the core of a zoo simulation by designing an abstract Animal class with polymorphic behavior. His approach emphasized object-oriented programming principles such as abstraction and polymorphism, resulting in a maintainable structure that supports rapid feature expansion. Although no bugs were fixed during this period, Sorrawit’s work provided a clear entry point for future contributors and improved onboarding. The code demonstrates solid use of basic programming and commit-driven development practices.