/*
Given an array of ints, return true if one of the first 4 elements in the array is a 9. The array length may be less than 4.
eg:
arrayFront9([1, 2, 9, 3, 4]) → true
arrayFront9([1, 2, 3, 4, 9]) → false
arrayFront9([1, 2, 3, 4, 5]) → false
*/
public boolean arrayFront9(int[] nums) {
int end = nums.length;
if(end > 4) end = 4;
for(int i=0; i