Convert Arraylist to an ArrayList or Integer Array [closed]

Answer 1

Iterator on the list and parse them into Integers:

(WARN: not tested)

ArrayList strArrayList;
int[] ArrayRes = new int[strArrayList.size()];

int i = 0;
for (String s : strArrayList)
{
    ArrayRes[i++] = Integer.parseInt(s);
}

You can then convert them to a single int value based on how you wish to concatenate them.