inital commit

src/main/java/lannguyen/Instructor.java

@@ -0,0 +1,42 @@
+package lannguyen;
+
+import java.util.ArrayList;
+
+///Instructor extends Person
+////
+////Additional fields: department
+////Methods: getSummary(), createAnnouncement(String message)
+////Instructor should also be able to hold a list of assigned Student objects with the ability to add students and print a roster.
+////
+////Dr. Rivera's Roster:
+////  - Jordan Smith | Grade Level: 2 | GPA: 3.8
+////  - Marcus Brown | Grade Level: 1 | GPA: 2.9
+///
+public class Instructor extends Person {
+    String department;
+
+    private ArrayList<Student> students;
+
+    public Instructor(String firstName, String lastName, String department) {
+        super(firstName, lastName);
+        this.department = department;
+        this.students = new ArrayList<>();
+    }
+
+    public void addStudent(Student student) {
+        students.add(student);
+    }
+
+    public void printRoster() {
+        System.out.println(getFullName() + "'s Roster:");
+        for (Student s : students) {
+            System.out.println("  - " + s.getSummary());
+        }
+    }
+
+    @Override
+    public String getSummary() {
+        return "[Instructor] " + getFullName()
+                + " | Department: " + department;
+    }
+}

src/main/java/lannguyen/Person.java

@@ -0,0 +1,45 @@
+package lannguyen;
+//Fields: id, firstName, lastName, email
+//Method: getSummary()
+/*Requirements
+All fields must be private
+All classes require a constructor
+Person must be abstract
+getSummary() must be overridden in each subclass
+No instanceof checks in your loop*/
+
+abstract class Person {
+    private int id;
+    private String firstName;
+    private String lastName;
+    private String email;
+
+    public Person(String firstName, String lastName) {
+
+        this.firstName = firstName;
+        this.lastName = lastName;
+
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public String getFullName() {
+        return firstName + " " + lastName;
+    }
+
+    public abstract String getSummary();
+}

src/main/java/lannguyen/School.java

@@ -0,0 +1,35 @@
+package lannguyen;
+
+import java.util.ArrayList;
+import java.util.List;
+//School class that holds a list of Student objects and a list of Instructor objects.
+// It should support adding both and printing a full directory.
+class School {
+
+    private ArrayList<Student> students;
+    private ArrayList<Instructor> instructors;
+
+    public School() {
+        students = new ArrayList<>();
+        instructors = new ArrayList<>();
+    }
+
+    public void addStudent(Student student) {
+        students.add(student);
+    }
+
+    public void addInstructor(Instructor instructor) {
+        instructors.add(instructor);
+    }
+
+    public void printDirectory() {
+        System.out.println("School Directory: ");
+
+        for (Student s : students) {
+            System.out.println(s.getSummary());
+        }
+        for (Instructor i : instructors) {
+            System.out.println(i.getSummary());
+        }
+    }
+}

src/main/java/lannguyen/Student.java

@@ -0,0 +1,50 @@
+package lannguyen;
+//Student extends Person
+//
+//Additional fields: gradeLevel, gpa
+//Methods: getSummary(), isOnHonorRoll()
+
+public class Student extends Person {
+    int gradeLevel;
+    double gpa;
+
+    public int getGradeLevel() {
+        return gradeLevel;
+    }
+
+    public void setGradeLevel(int gradeLevel) {
+        this.gradeLevel = gradeLevel;
+    }
+
+    public double getGpa() {
+        return gpa;
+    }
+
+    public void setGpa(double gpa) {
+        this.gpa = gpa;
+    }
+
+    public Student(String firstName, String lastName, int gradeLevel, double gpa) {
+        super(firstName, lastName);
+        this.gradeLevel = gradeLevel;
+        this.gpa = gpa;
+
+    }
+    public boolean isHonorRoll() {
+        return gpa >= 3.5;
+    }
+
+    @Override
+    public String getSummary() {
+        return "[Student] " + getFullName()
+                + " | Grade Level: " + gradeLevel
+                + " | GPA: " + gpa
+                + " | Honor Roll: "
+                + (isHonorRoll() ? "Yes" : "No");
+    }
+    }
+
+
+
+
+

src/main/java/lannguyen/main.java

@@ -0,0 +1,38 @@
+package lannguyen;
+//Dr. Rivera's Roster:
+//  - Jordan Smith | Grade Level: 2 | GPA: 3.8
+//  - Marcus Brown | Grade Level: 1 | GPA: 2.9
+//In your Main class, create a mix of Student and Instructor objects, store them in a single list, and print each one's summary.
+//Example Output
+
+/// // [Student] Jordan Smith | Grade Level: 2 | GPA: 3.8 | Honor Roll: Yes
+/// // [Student] Marcus Brown | Grade Level: 1 | GPA: 2.9 | Honor Roll: No
+/// // [Instructor] Dr. Rivera | Department: Computer Science
+///
+public class main {
+    public static void main(String[] args) {
+
+        Student s1 = new Student("Jordan", "Smith", 2, 3.8);
+        Student s2 = new Student("Marcus", "Brown", 1, 2.9);
+
+        Instructor inst1 = new Instructor("Dr.", "Rivera", "Computer Science");
+
+        // Add students to instructor roster
+        inst1.addStudent(s1);
+        inst1.addStudent(s2);
+
+        // Create school and add all
+        School mySchool = new School();
+        mySchool.addStudent(s1);
+        mySchool.addStudent(s2);
+        mySchool.addInstructor(inst1);
+
+        // Print full directory
+        mySchool.printDirectory();
+
+        System.out.println("================================");
+
+        // Optional: Print instructor roster
+        inst1.printRoster();
+    }
+}