class Etudiant{
    static
    {
        nbEtu = 0;
    }
    private static int nbEtu;
    private  int matricule; // question private/protected/public
    private String nom;
    private static int nbNotes;
    private int tab[] = new int[3]; // déclaration du tab

    public Etudiant(){
        this("",0);
    }
    public Etudiant(String nom, int nbNotes){
        nbEtu++;
        matricule = nbEtu;
        this.nom=nom;
        this.nbNotes=nbNotes;
        int tab[] = new int[nbNotes];
    }


    public void saisie(){
        int i;
        for(i=0;i<tab.length;i++){
            Scanner clavier = new Scanner(System.in);
            tab[i] = clavier.nextInt();
            System.out.println("la note numero " + i+1 + " est de : " + tab[i]);
        }
    }

    public int getNb(){return nbNotes;}

    public float moyenne(){
        float moy=0.f;
        int i;
        for(i=0;i<tab.length;i++){
            moy=moy+tab[i];
        }
        return moy/nbNotes;

    }

    public void affiche(){
        System.out.println(matricule + nom + nbNotes + moyenne());
    }
    public Etudiant clone(){
     //a= b.clone()
     Etudiant name = new Etudiant(this.nom, this.nbNotes);
    name.matricule = this.matricule;
        return name;
    }
}