多选题 Given:
1. import java.util.*;
2. public class Drunken {
3. public static void main(String[] args) {
4. Set＜Stuff＞ s = new HashSet＜Stuff＞();
5. s.add(new Stuff(3)); s.add(new Stuff (4)); s.add(new Stuff(4));
6. s.add(new Stuff(5)); s.add(new Stuff(6));
7. s = null;
8. // do more stuff
9. }
10. }
11. class Stuff {
12. int value;
13. Stuff(int v) {value = v; }
14. }
When line 8 is reached, how many objects are eligible for garbage collection?