Question

Is it possible to convert and Object[]array to and integer Array.

The reason I am asking is because I added integers to an ArrayList and then converted this into and Object[]array.

ArrayList<Integer> list = new ArrayList<Integer>();
Object[] arrayNumbers = list.toArray();

Which would be the best way of getting this into and int[]array?
All I need to do is to sort these numbers. Can I sort all my numbers in this arraylist without converting it into an int[]array?

Kind regards

Answer 1

You should be doing this:

Integer[] arrayNumbers = list.toArray(new Integer[list.size()]);

If you just want to sort, simply use Collections.sort(list).