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; }