Given a pre-generics implementation of a method:
11. public static int sum(List list) {
12. int sum = 0;
13. for ( Iterator iter = list.iterator(); iter.hasNext(); ) {
14. int i = ((Integer)iter.next()).intValue();
15. sum += i;
16. }
17. return sum;
18. }
What three changes allow the class to be used with generics and avoid an unchecked warning? (Choose three.)
A. Remove line 14.
B. Replace line 14 with int i = iter.next();
C. Replace line 13 with for (int i : intList) {
D. Replace line 13 with for (Iterator iter : intList) {
E. Replace the method declaration with sum(List<int> intList)
F. Replace the method declaration with sum(List<Integer> intList)
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