182. 객체 배열 교환과 공유 참조

1class Box {
2    int v;
3 
4    Box(int v) {
5        this.v = v;
6    }
7}
8 
9public class Main {
10    public static void main(String[] args) {
11        Box[] arr = {new Box(1), new Box(2)};
12        Box keep = arr[0];
13        Box t = arr[0];
14        arr[0] = arr[1];
15        arr[1] = t;
16        keep.v = 5;
17        System.out.println(arr[0].v + " " + arr[1].v);
18    }
19}