String array to a collection of Integer?

Question

What is an easy way to convert a String[] to a Collection<Integer>? This is how I'm doing it right now but not sure if it's good:

String[] myStringNumbers;

Arrays.stream(Arrays.asList(myStringNumbers).stream().mapToInt(Integer::parseInt).toArray()).boxed().collect(
                    Collectors.toList());

Answer 1

You don't need to make an intermediate array. Just parse and collect (with static import of Collectors.toList):

Arrays.stream(myStringNumbers).map(Integer::parseInt).collect(toList());

Answer 2

It is unnecessary to use parseInt as it will box the result to the collection, and as @Misha stated you can use Arrays.stream to create the stream. So you can use the following:

Arrays.stream(myStringNumbers).map(Integer::decode).collect(Collectors.toList());

Please note that this does not do any error handling (and the numbers should not start with 0, # or 0x in case you do not want surprises). If you want just base 10 numbers, Integer::valueOf is a better choice.