多选题 Given:
2. class Explode {
3. static String s = "";
4. static {s += "sb1 "; }
5. Explode() {s += "e "; }
6. }
7. public class C4 extends Explode {
8. C4() {
9. s += "c4 ";
10. new Explode();
11. }
12. static {
13. new C4();
14. System.out.print(s);
15. }
16. {s += "i ";}
17. public static void main(String[] args) { }
18. }
And given the command-line invocation "java C4", what is the result?