isAnagramOfPalindrome

    public static boolean isAnagramOfPalindrome(String test) {
        HashSet<Character> vals = new HashSet<>();
        int length = test.length();
        for (int i = 0; i < length; i++) {
            if (Character.isWhitespace(test.charAt(i))) {
                // do nothing
            }
            else if (vals.contains(test.charAt(i))) {
                vals.remove(test.charAt(i));
            }
            else {
                vals.add(test.charAt(i));
            }
        }
        // by the end of the loop we will have no characters or 1 if we should return true
        if (vals.size() == 0 || vals.size() == 1) {
            return true;
        }
        return false;
    }