Recursive method for sum
public static int sum(final List<Integer> list) {
if (list.isEmpty())
return 0;
return list.get(0) + sum(list.subList(1, list.size()));
}
public static int sum(final List<Integer> list) {
if (list.isEmpty())
return 0;
return list.get(0) + sum(list.subList(1, list.size()));
}
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