Student/Person inheritance code

//This class is created in the same file as Student. This is typically not common practice but I thought it was a good idea to see both classes in the same file.
class Person{
   private String name;

   public Person(String n){
      name = n;
   }

   public String toString(){
      return name;
   }
}

public class Student extends Person{
   private int id;

   public Student(String n,int i){
      super(n);
      id = i;
   }

   public String toString(){
      return super.toString() + " ID: " + id;
   }

   public static void main(String[] args){
      Student s = new Student("Nancy", 55);
      System.out.println(s instanceof Student);
      System.out.println(s instanceof Person);
      System.out.println(s);
   }
}