多选题 Given the proper import(s), and this code in a method:
4. List＜String＞ x = new LinkedList＜String＞();
5. Set＜String＞ hs = new HashSet＜String＞();
6. String[] v = {"a", "b", "c", "b", "a"};
7. for(String s: v) {
8. x.add(s); hs.add(s);
9. }
10. System.out.print(hs.size() + " " + x.size() + " ");
11. HashSet hs2 = new HashSet(x);
12. LinkedList x2 = new LinkedList(hs);
13. System.out.println(hs2.size() + " " + x2.size());
What is the result?