add course registration starter code

src/CourseRegistrationStarter/Course.java

@@ -0,0 +1,37 @@
+package CourseRegistrationStarter;
+
+public class Course {
+    private String courseName;
+    private String courseCode;
+    private int capacity;
+
+    public Course(String courseName, String courseCode, int capacity) {
+        this.courseName = courseName;
+        this.courseCode = courseCode;
+        this.capacity = capacity;
+    }
+
+    public String getCourseName() {
+        return courseName;
+    }
+
+    public String getCourseCode() {
+        return courseCode;
+    }
+
+    public int getCapacity() {
+        return capacity;
+    }
+
+    public boolean reduceCapacity() {
+        if (capacity > 0) {
+            capacity--;
+            return true;
+        }
+        return false;
+    }
+
+    public void increaseCapacity() {
+        capacity++;
+    }
+}

src/CourseRegistrationStarter/Main.java

@@ -0,0 +1,14 @@
+package CourseRegistrationStarter;
+
+public class Main {
+    public static void main(String[] args) {
+        // TODO:
+        // 1. Create at least 3 courses
+        // 2. Create 1 student
+        // 3. Create a registration system
+        // 4. Add courses to the system
+        // 5. Register the student in some courses
+        // 6. Drop one course
+        // 7. Print the final registered course list
+    }
+}

src/CourseRegistrationStarter/RegistrationSystem.java

@@ -0,0 +1,24 @@
+package CourseRegistrationStarter;
+import java.util.ArrayList;
+
+public class RegistrationSystem {
+    private ArrayList<Course> courses;
+
+    public RegistrationSystem() {
+        courses = new ArrayList<>();
+    }
+
+    public void addCourseToSystem(Course c) {
+        // TODO: Add the course to the system
+    }
+
+    public Course findCourseByCode(String code) {
+        // TODO: Search for a course by course code
+        // Return the matching course if found, otherwise return null
+        return null;
+    }
+
+    public void showAllCourses() {
+        // TODO: Print all courses in the system
+    }
+}

src/CourseRegistrationStarter/Student.java

@@ -0,0 +1,39 @@
+package CourseRegistrationStarter;
+import java.util.ArrayList;
+
+public class Student {
+    private String name;
+    private String studentId;
+    private ArrayList<Course> registeredCourses;
+
+    public Student(String name, String studentId) {
+        this.name = name;
+        this.studentId = studentId;
+        this.registeredCourses = new ArrayList<>();
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getStudentId() {
+        return studentId;
+    }
+
+    public boolean addCourse(Course c) {
+        // TODO: Register the student in the course if capacity allows
+        // Return true if registration was successful, otherwise false
+        return false;
+    }
+
+    public boolean dropCourse(Course c) {
+        // TODO: Remove the course from the student's list
+        // Restore the course capacity if removal was successful
+        // Return true if the course was dropped, otherwise false
+        return false;
+    }
+
+    public void showRegisteredCourses() {
+        // TODO: Print all registered courses
+    }
+}