创建一个决定单词元音和谐的方法

    public static String vowelHarmony(String input) {

    String[] high = {"e", "i"};
    String[] deep = {"a", "o", "u"};

    for (int i = 0; i < input.length(); i++) {
        if (input.contains(high[i])&&!input.contains(deep[i])){
            return "high";
        }
        else if (input.contains(deep[i])&&!input.contains(high[i])){
            return "deep";
        }
        else if (input.contains(deep[i])&&input.contains(high[i])){
            return "mixed";
        }
    }
    return "you screwed something up";
}
    public static String vowelHarmony(String in