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

a[n-1] 

is getting the int at n-1, not the array from 0 to n-1.

try using

Arrays.copyOf(a, a.length-1);

instead