List class's toArray in Java- Why can't I convert a list of “Integer” to an “Integer” array?

Question

I defined List stack = new ArrayList();

When I\'m trying to convert it to an array in the following way:

Answer 1

Do this instead:

Integer[] array = stack.toArray(new Integer[stack.size()]);

We need to pass the "seed" array as an argument to the toArray method.