Why can I not convert my integer to a double?

Question

I am trying to work out the average of the array but I cannot convert the int into a double? why is this happening?

private void AvgOfArray(){

            myWindow.clearOut();
            int total = 0;
            int[] a = new int[4];
            int i = 0;
            double avg = 0.0;
            while (i < a.length) {
                a[i] = 1 + (int) (Math.random() * 10);
                myWindow.writeOutLine(a[i]);
                total += a[i];
                i++;
            }
            avg = (Double) i;
            myWindow.writeOutLine(total/Double.parseDouble(i));


        }

Answer 1

The correct way to calculate the average is something like,

double avg = total / (double) i;
myWindow.writeOutLine(avg);

Boxing an int to a Double doesn't make much sense, especially to then try and parse it.