I'm writing a method that takes an ArrayList and uses the element at a certain index in a different location , yet when I use the .get(int) method in the code, I get an error.

```
static void linreg(ArrayList<Integer> x[], ArrayList<Integer> y[]) {

        double sum_x = 0, sum_y = 0, int n = 15;

        for (int i = 0; i < n; i++) {

          sum_x += x.get(i); - Cannot invoke get(int) on the array type ArrayList<Integer>[]
          sum_y += y.get(i); - Cannot invoke get(int) on the array type ArrayList<Integer>[] 

```

Is there a way to fix this? Thanks