recursively sum the integers in an array

Question

I have a program that I\'m trying to make for class that returns the sum of all the integers in an array using recursion. Here is my program thus far:

public         


        

Answer 1

Try this if you don't want to pass the length of the array :

private static int sumOfArray(int[] array) {

        if (1 == array.length) {
            return array[array.length - 1];
        }

        return array[0] + sumOfArray(Arrays.copyOfRange(array, 1, array.length));
    }

Offcourse you need to check if the array is empty or not.