Developed a currency conversion feature for the STD-INFO-COMPUTING-WEB-2024-12-25/06_JAVA repository, focusing on enabling accurate Won-to-Euro calculations. The work centered on implementing the Won2Euro class in Java, applying object-oriented programming principles to encapsulate conversion logic and manage updated exchange rates. By introducing explicit source and destination currency metadata, the solution improved both calculation accuracy and traceability for financial workflows. The implementation laid the foundation for future multi-currency support, supporting Euro-denominated reporting needs. All changes were delivered in a single, well-documented commit, reflecting a methodical approach to feature development and clear communication of technical decisions.