多选题 Given:
1. public class Networking {
2. public static void main(String[] args) {
3. List＜Integer＞ i = new LinkedList＜Integer＞();
4. i.add(4); i.add(2); i.add(5);
5. int r = i;
6. doStuff(r);
7. System.out.println(i.get(r));
8. }
9. static int doStuff(int x) {
10. return ++x;
11. } }
What is the result?