Student.java

public class Student extends Person {
 private float gpa;
 private int id;

 public Student (int id, float gpa, String firstName, String lastName, int yearOfBirth) {
 super(firstName, lastName, yearOfBirth);
 this.id = id;
 this.gpa = gpa;
 }

 public float getGpa() {
 return gpa;
 }

 public int getId() {
 return id;
 }

 public String toString() {
 return "Id: " + " , " + super.toString() + " GPA: " + gpa;
 }
}