This project is a Java-based application designed to manage the academic relationships between Students, Courses, Departments, and Assignments. It simulates a simplified school system where students can register for courses, assignments can be graded (randomly generated or manually set), and weighted averages are calculated automatically.

The project demonstrates object-oriented programming principles, strict data validation, automatic ID generation, and unit testing using JUnit 5.

• Address Validation: strict validation of Canadian postal codes (format A1A1A1). Invalid postal codes result in nullified address fields.
• Title Case Conversion: Utility class ensures all names (Student, Department, Course) are automatically converted to Title Case (e.g., "computer science" → "Computer Science").
• Department Names: Validates that department names contain only letters or spaces.

• Student ID: Auto-increments in the format S000001.
• Department ID: Auto-increments in the format D01, D02.
• Course ID: Complex formatting combining Department ID and auto-increment, e.g., C-D01-05.
• Assignment ID: Auto-increments in the format A01.

• Registration System: Students can register for courses. This links the student to the course and initializes placeholder scores for all existing assignments.
• Score Simulation: Ability to generate random scores for assignments based on specific probability distributions (e.g., higher probability for scores between 80-90).
• Weighted Averages: Calculates final course grades based on assignment weights (must sum to 100%).

• Comprehensive JUnit 5 test suite covering normal, null, and edge cases for all classes.

• Java: Core logic and object-oriented design.
• JUnit 5: Unit testing framework.
• Project Lombok: Used to reduce boilerplate code (Getters, Setters, ToString) while manually overriding specific methods (equals, constructors) where complex logic was required.

src/
├── main/
│   └── java/
│       ├── Address.java       
│       ├── Assignment.java    
│       ├── Course.java        
│       ├── Department.java    
│       ├── Student.java       
│       └── util/
│           └── Util.java      
└── test/
    └── java/
        └── org/example/
            ├── AddressTest.java
            ├── AssignmentTest.java
            ├── CourseTest.java
            ├── DepartmentTest.java
            ├── StudentTest.java
            └── UtilTest.java