Java convert String[] to int[]

Question

I have a String[], where each element is convertible to an integer. What's the best way I can convert this to an int[]?

int[] StringArrayToIntArray(String[] s)
{
    ... ? ...
}

Answer 1

Now that Java's finally caught up to functional programming, there's a better answer:

int[] StringArrayToIntArray(String[] stringArray)
{
    return Stream.of(stringArray).mapToInt(Integer::parseInt).toArray();
}

Answer 2

With Guava:

return Ints.toArray(Collections2.transform(Arrays.asList(s), new Function<String, Integer>() {
    public Integer apply(String input) {
        return Integer.valueOf(input);
    }
});

Admittedly this isn't the cleanest use ever, but since the Function could be elsewhere declared it might still be cleaner.