177. 배열·문자열 매개변수에 새 값 대입하기

1public class Main {
2    static void change(int[] arr, String s) {
3        arr[0] = arr[0] * 2;
4        s = s + "!";
5        arr = new int[]{9, 9};
6        arr[1] = 0;
7    }
8 
9    public static void main(String[] args) {
10        int[] nums = {3, 4};
11        String word = "hi";
12        change(nums, word);
13        System.out.println(nums[0] + " " + nums[1]);
14        System.out.println(word);
15    }
16}