README.md

java-encapsulation

project 1: Task Manager System

Files

• Main: Task.java (immutable), TaskList.java (mutable).
• Tests: TaskTest.java.

Tasks

1. Add removeTask(String id) to TaskList. Test it.
2. Add isComplete field to Task (immutable). Test it.
3. Write a test in TaskTest for equals with different IDs.
4. Add clearTasks() to TaskList. Test it.
5. Prepare a 1–2 min explanation on encapsulation (e.g., why Task hides fields).

project 2: User Profile System

Files

• Main: User.java (immutable), ProfileManager.java (mutable).
• Tests: UserTest.java.

Tasks

1. Add removeProfile(String username) to ProfileManager. Test it.
2. Add displayName field to User (immutable). Test it.
3. Write a test in UserTest for equals with different emails.
4. Add updateProfile(User user) to ProfileManager. Test it.
5. Prepare a 1–2 min explanation on encapsulation (e.g., why User hides data).

Project 3: Event Scheduler System

Files

• Main: Event.java (immutable), Scheduler.java (mutable).
• Tests: EventTest.java.

Tasks

1. Add cancelEvent(String id) to Scheduler. Test it.
2. Add title field to Event (immutable). Test it.
3. Write a test in EventTest for equals with different times.
4. Add listEvents() to Scheduler (returns event IDs). Test it.
5. Prepare a 1–2 min explanation on encapsulation (e.g., why Event hides fields).