public void wyswietlListe() {
ArrayIt it = new ArrayIt(list);
it.first();
while (it.hasNext()) {
Towar t = (Towar) it.current();
System.out.printf("%-10s %-3d %5.2f %5.2f %n", t.towar, t.ilosc, t.cena, t.wartosc);
it.next();
}
System.out.println();
}
public void zmianaCeny(float Ncena, String nazwa) {
ArrayIt it = new ArrayIt(list);
it.first();
while (it.hasNext()) {
Towar t = (Towar) it.current();
if (t.towar.equals(nazwa)) {
t.cena = Ncena;
}
it.next();
}
System.out.println("Zmieniam cene " + nazwa + " na " + Ncena + "\n");
}
public float wartosc() {
ArrayIt it = new ArrayIt(list);
it.first();
float sumaWar = 0;
while (it.hasNext()) {
Towar t = (Towar) it.current();
t.wartosc = (t.ilosc * t.cena);
sumaWar += t.wartosc;
it.next();
}
System.out.println("Wartosc wynosi " + sumaWar + "\n");
return sumaWar;
}
