public static void main(String[] args) {
ArrayList<Integer>list = new ArrayList<>();
for(int i = 1; i < 6; i++){ // bu element index degil.
list.add(i);
}
System.out.println(list); // [1, 2, 3, 4, 5]
for (int i = list.size()-1; i >= 0; i--) {
int each = list.get(i); // unboxing
System.out.print(each + " "); // 5 4 3 2 1
}