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- package pl.sda.typygeneryczne;
- public class Para<prawy, lewy> {
- private Object prawy;
- private Object lewy;
- public Para(Object prawy, Object lewy) {
- this.prawy = prawy;
- this.lewy = lewy;
- }
- }
- package pl.sda.typygeneryczne;
- public class Main {
- public static void main(String[] args) {
- Para<Integer, Integer> slowka = new Para<Integer, Integer>(6, 6);
- Para<Integer, Integer> numerki = new Para<Integer, Integer>(2, 31);
- Para<Integer, Integer> numery = new Para<Integer, Integer>(21, null);
- Para[] tablica = new Para[3];
- tablica[0] = slowka;
- tablica[1] = numerki;
- tablica[2] = numery;
- znajdźNiepuste(tablica);
- }
- public static <T> boolean znajdźNiepuste(Para[] tablica) {
- for (int i = 0; i < tablica.length; i++) {
- if (tablica[i] != null) {
- System.out.println("Nie jest pusto!");
- return true;
- }
- }
- return false;
- }
- }
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