Laboratorul 4. Modificati aplicatia JavaZOO din laboratorul 3 astfel a) faceti clasa Animal o clasa abstracta care sa contina metoda abstracta: void mananca(String mancare) b) schimbati functia main din clasa Administrator astfel: public static void main(String s[]) { Administrator ionel = new Administrator("Ion", 40); String mancare[] = {"carne", "iarba", "concentrate"}; Cusca custi[] = new Cusca[3]; Animal tim = new Tirgu("Tim", 10); Animal leo = new Leu("Leo", 5); Animal ela = new Papagal("Ela", 7); custi[0] = new Cusca(tim); custi[1] = new Cusca(leo); custi[2] = new Cusca(ela); ionel.hranesteAnimale(custi, mancare); ionel.curataCusti(custi); } c) schimbati metoda hranesteAnimal a clasei Administrator in metoda public void hranesteAnimale(Cusca custi[], String mancare[]) d) schimbati metoda curataCusca a clasei Administrator in metoda public void curataCusti(Cusca custi[])