class Student implements Comparable, java.util.Comparator{
  String name;
  String vorname;
  long matrikelNr;
  short alter;
  short fachbereich; 
  
  Student (String n, String v, long m, short a, short f){
    name = n;
    vorname = v;
    matrikelNr = m;
    alter = a;
    fachbereich = f;
    }

  boolean leq(Student s1, Student s2 ){
    int i1 = s1.name.compareTo(s2.name);
    if (i1  < 0) return true;
    if (i1 == 0) return s1.vorname.compareTo(s2.vorname) <= 0;
    return false;
    }
    
  public int compareTo(Object o){
        Student s = (Student) o;
        int i = name.compareTo(s.name);
        if (i != 0) return i;
        return vorname.compareTo(s.vorname);
        }  
        
  public int compare(Object o1, Object o2){
    Student s = (Student) o1;
    return s.compareTo(o2);
    }        
    
  public String toString(){   
    return name+", " + vorname + " FB " + fachbereich;
    }
}


public class Test {

    public static void main(String args[]) {
        
        Student st1 = new Student("Maier", "Hanns", 4242424242L, (short) 22, (short) 12);
        Student st2 = new Student("Maier", "Hanns", 4242424242L, (short) 22, (short) 12);
        Student st3 = new Student("Maier", "Berti", 4242424242L, (short) 22, (short) 12);
        Student st4 = new Student("Mister", "Hanns", 4242424242L, (short) 22, (short) 12);
        
        System.out.println (st1.compare(st1, st2) +"  "+ st1 + st2);
        System.out.println (st1.compare(st1, st3) +"  "+ st1 + st3);
        System.out.println (st1.compare(st1, st4) +"  "+ st1 + st4);
        System.out.println (st4.compare(st4, st3) +"  "+ st4 + st3);
        
    }
}