Welcome to the Hogwarts School System workshop! This magical journey will help you master the fundamentals of Object-Oriented Programming (OOP) through a fun, wizard-themed project.

🎯 Workshop Objectives

By completing this workshop, you will learn and practice:

Concept	How it's used in this project
Encapsulation	Private fields with public getters/setters
Inheritance	`Student` and `Teacher` extend `User`
Polymorphism	Different user types with same methods
Abstraction	Abstract `User` class with common behavior
Lists & Collections	Managing students, teachers, and courses with `ArrayList`
Input Validation	Validating usernames and passwords
ID-based Selection	Finding courses by unique ID instead of name

🏰 Storyline

Professor Dumbledore has asked you to help modernize Hogwarts! The old parchment-based course enrollment system is a disaster. Students keep signing up for the wrong classes, and Professor Snape is furious because his Potions class is full of first-year students who can't tell a bezoar from a newt's eye.

Your mission: Build a digital School Management System that allows:

Students to view available courses and enroll using magical Course IDs
Teachers to create new courses and manage their classes
Everyone to log in securely (even Filch needs to check who's where)

📚 Class Hierarchy Diagram


        ┌─────────────────┐
        │ User            │
        │ (Abstract)      │
        └────────┬────────┘
                 │
  ┌──────────────┴──────────────┐
  │                             │
┌─────▼─────┐             ┌─────▼─────┐
│ Student   │             │   Teacher │
└─────┬─────┘             └─────┬─────┘
      │                         │
┌─────▼─────┐             ┌─────▼─────┐
│enrolled   │             │ myCourses │
│ Courses   │             │   (List)  │
└───────────┘             └───────────┘

┌─────────────────┐
│ Course          │
├─────────────────┤
│ - id (static)   │
│ - name          │
│ - teacher       │     
│ - students      │
└─────────────────┘
       │
       │ contains
       ▼
┌─────────────────┐
│ SchoolSystem    │
│ (Service)       │
└─────────────────┘

📋 Complete TODO List

🔧 Student.java (3 TODOs)

#	Method	Description
1	`enrollInCourse(Course course)`	Register student in a course
2	`showMyCourses()`	Display all enrolled courses
3	`getEnrolledCourses()`	Return list of enrolled courses

🔧 SchoolSystem.java (5 TODOs)

#	Method	Description
4	`registerStudent(String username, String password)`	Register new student
5	`loginStudent(String username, String password)`	Student login
6	`findStudent(String username)`	Find student by username (private)
7	`addCourseToSystem(String courseName)`	Add new course to system
8	`findCourseById(int id)`	Find course by ID

🔧 Main.java (4 TODOs)

#	Location	Description
9	`registerMenu()` - case 1	Student registration
10	`loginMenu()` - case 1	Student login
11	`studentMenu()` - case 3	Show my courses
12	`enrollInCourse(Student student)`	Enroll logic

📊 Summary

File	TODO Count
Student.java	3
SchoolSystem.java	5
Main.java	4
Total	12

ℹ️ Note

This exercise is for practice only and has no bouns.
Students can complete it in class with TA assistance.

Good luck, young wizard! ✨

README.md Unescape Escape

🧙‍♂️ Workshop: Hogwarts School System - A Magical OOP Adventure

Welcome, Young Wizard!