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:

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Answer 1

The issue is that a[n-1] is an int, whereas sumOfArray expects an array of int.

Hint: you can simplify things by making sumOfArray take the array and the starting (or ending) index.