3.4 subordinates: The Robot class, which controls the information flow between thecomponents and between the components

In a personal affairs management system for college students, there may be the following subordinates: 1. User interface class: used to interact with users, receive and display user input information, and provide feedback and results to users. 2. Database management class: used to manage and store user's personal information, tasks, notes, and other data, and provide data query and update functions. 3. Authentication and authorization class: used to verify user identity and authorize access to different functions and resources in the system. 4. Task management class: used to create, edit, delete, and track user's tasks and to-do items, and provide task priority and deadline settings. 5. Calendar class: used to display user's schedule and important dates, and provide reminder and notification functions. 6. Note management class: used to create, edit, delete, and organize user's notes and documents, and provide search and filter functions.