What a method can change

1public class Main {
2    static void tryToChange(int x, int[] arr) {
3        x = 99;
4        arr[0] = 99;
5    }
6 
7    public static void main(String[] args) {
8        int n = 5;
9        int[] box = {5};
10        tryToChange(n, box);
11        System.out.println(n + " " + box[0]);
12    }
13}