package CourseRegistrationStarter; import java.util.ArrayList; public class RegistrationSystem { private ArrayList courses; public RegistrationSystem() { courses = new ArrayList<>(); } public void addCourseToSystem(Course c) { courses.add(c); } public Course findCourseByCode(String code) { for (Course c : courses) { if (c.getCourseCode().equals(code)) { return c; } } return null; } public void showAllCourses() { for (Course c : courses) { System.out.println(c.getCourseCode() + " - " + c.getCourseName() + " (Capacity: " + c.getCapacity() + ")"); } } }