class MainPerson {
  public static void main(String[] args) {
    Student studentObjekt = new Student("Samuel", "it");
    Person personObjekt = new Person("Jonas");
    //Student stud = personObjekt; // -> FEIL, Student referanse kan IKKE gå "oppover"
    Person pers = studentObjekt; // Person referanse kan gå "nedover" til Student

    System.out.println(pers + " instanceof Person?: " + (pers instanceof Person));
    System.out.println(pers + " instanceof Student?: " + (pers instanceof Student));
  }
}