Here is a recursive method:

 public static int mystery(int i, int[] arr) { if(i == arr.length - 1) return arr[i]; else { int temp = mystery(i+1, arr); if(temp < arr[i]) return temp; else return arr[i]; } }

What is the return value of the following call?

mystery(0,new int[]{5,2,8,4,9});