public class PJJJeden { public static void main(String[] args) { int[] tab = {25, 14, 56, 15, 36, 36, 77, 18, 29, 49}; checkVal(tab); } public static boolean checkVal(int[] tab) { for (int i = 0; i < tab.length; i++) { if (tab[i] == tab[i + 1]) { System.out.println(tab[i]); return true; } } return false; } }