How to convert an ArrayList containing Integers to primitive int array?

Question

I\'m trying to convert an ArrayList containing Integer objects to primitive int[] with the following piece of code, but it is throwing compile time error. Is it possible to

Answer 1

You can simply copy it to an array:

int[] arr = new int[list.size()];
for(int i = 0; i < list.size(); i++) {
    arr[i] = list.get(i);
}

Not too fancy; but, hey, it works...