package org.university.core; import java.util.ArrayList; public class Student extends Person { ArrayList<Course>courses; public Student(String firstName, String lastName, String ID, int joiningYear, Department department) { super(firstName, lastName, ID, joiningYear, department); courses=new ArrayList<>(); } public ArrayList<Course> getCourses() { return courses; } public void addCourse(Course c){ courses.add(c); } }