public boolean sameFirstLast(int[] nums) {
  return nums.length >= 1 && nums[0] == nums[nums.length-1];
}

public boolean sameFirstLast(int[] nums) {
  if (nums.length >= 1) {
    int first = nums[0];
    int last = nums[nums.length-1];
    return first == last;
  }
  else {
    return false;
  }
}