Travel Agency Application Program: Design, Implementation, and Testing

This assignment details the development of a Travel Agency Application Program designed to facilitate the booking of Japan tour packages. The application allows users to input details such as destination, season, food preferences, and group size, and then calculates the total cost based on pre-defined pricing structures for regions, seasons, flights, hotels, food, and tour guides. The program utilizes object-oriented principles, including a class hierarchy with a Tour Agency class implementing an interface, GUI elements for user interaction, and methods for data validation and calculation. The application is tested for functionality and error handling, with screenshots illustrating various test cases and evaluation criteria. The assignment also includes a class hierarchy diagram, use case diagram and instance diagram, and discusses limitations and potential problems. The application is written in Java and demonstrates a practical application of programming concepts to solve a real-world problem.