public class Student extends Person {

  private int uniqueID;
 

  public int getID() {
     return uniqueID;
  }

 public void setID(int i) {
    if(i >= 0) {
      uniqueID = i;
    }
 }

 Student() {
   //name = "Unknown Student";
   //uniqueID = 0;
   setName("Unknown Student");
   setID(0);
 }

}