"JKB Student Management System"

src/main/java/students/jamesbarclay/Instructor.java

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+package students.jamesbarclay;
+
+import java.util.ArrayList;
+
+public class Instructor extends Person {
+    private String department;
+    private ArrayList<Student> assignedStudents = new ArrayList<>();
+
+    public Instructor(int id, String firstName, String lastName, String email, String department) {
+        super(id, firstName, lastName, email);
+        this.department = department;
+    }
+
+    // Assign a student to the instructor
+    public void addStudent(Student student) {
+        assignedStudents.add(student);
+    }
+
+    //  all students assigned to this instructor
+    public void printRoster() {
+        System.out.println(getFirstName() + "'s Roster:");
+        for (Student s : assignedStudents) {
+            System.out.println("  - " + s.getFirstName() + " " + s.getLastName() +  " | Grade Level: " + s.getGradeLevel() +  " | GPA: " + s.getGpa());
+        }
+    }
+
+    public void createAnnouncement(String message) {
+        System.out.println("[Announcement] " + message);
+    }
+
+    @Override
+    public void getSummary() {
+        System.out.println("[Instructor] " + getFirstName() + " " + getLastName() +  " | Department: " + department);
+    }
+}

src/main/java/students/jamesbarclay/Main.java

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+package students.jamesbarclay;
+
+import java.util.ArrayList;
+
+public class Main {
+    public static void main(String[] args) {
+        // Create students
+        Student student1 = new Student(1, "Jordan", "Michael", "jordan@gmail.com", '2', 2.3);
+        Student student2 = new Student(1, "Marcus", "Ross", "marcus@gmail.com", '1', 3.9);
+
+        // Create instructor and assign students
+        Instructor instructor1 = new Instructor(100, "Dr.", "Rivera", "rivera@gmail.com", "Computer Science");
+        instructor1.addStudent(student1);
+        instructor1.addStudent(student2);
+
+
+        ArrayList<Person> people = new ArrayList<>();
+        people.add(student1);
+        people.add(student2);
+        people.add(instructor1);
+
+
+        System.out.println("--- People Summaries ---");
+        for (Person p : people) {
+            p.getSummary();
+        }
+
+        // Print roster
+        System.out.println("\n--- Instructor Rosters ---");
+        instructor1.printRoster();
+    }
+}

src/main/java/students/jamesbarclay/Person.java

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+package students.jamesbarclay;
+
+
+public abstract class Person {
+    private int id;
+    private String firstName;
+    private String lastName;
+    private String email;
+
+
+    public abstract void getSummary();
+
+    public Person(int id, String firstName, String lastName, String email) {
+        this.id = id;
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.email = email;
+    }
+
+    // getters for all fields
+    public int getId() {
+        return id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+}

src/main/java/students/jamesbarclay/School.java

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+package students.jamesbarclay;
+
+
+import java.util.ArrayList;
+
+public class School {
+    private ArrayList<Student> studentList = new ArrayList<>();
+    private ArrayList<Instructor> instructorList = new ArrayList<>();
+
+    public void addStudent(Student student) {
+        studentList.add(student);
+    }
+
+    public void addInstructor(Instructor instructor) {
+        instructorList.add(instructor);
+    }
+
+    public void printAllPeople() {
+        for (Student s : studentList) s.getSummary();
+        for (Instructor i : instructorList) i.getSummary();
+    }
+}

src/main/java/students/jamesbarclay/Student.java

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+package students.jamesbarclay;
+
+public class Student extends Person {
+    private int gradeLevel;
+    private double gpa;
+
+    public Student(int id, String firstName, String lastName, String email, int gradeLevel, double gpa) {
+        super(id, firstName, lastName, email);
+        this.gradeLevel = gradeLevel;
+        this.gpa = gpa;
+    }
+
+    // Determines if the student is on honor roll
+    public boolean isOnHonorRoll() {
+        return gpa >= 3.0;
+    }
+
+    // Summary override demonstrates polymorphism
+    @Override
+    public void getSummary() {
+        System.out.println("[Student] " + getFirstName() + " " + getLastName() +
+                " | Grade Level: " + gradeLevel +
+                " | GPA: " + gpa +
+                " | Honor Roll: " + (isOnHonorRoll() ? "Yes" : "No"));
+    }
+
+    // Getters
+    public int getGradeLevel() {
+        return gradeLevel;
+    }
+
+    public double getGpa() {
+        return gpa;
+    }
+}