找到数组中第一个和最后一个回文之间的字符串长度

Question

我需要找到数组中第一个和最后一个回文之间的字符串长度。

` public static String firstPalindrome(String[] words) {

    int count = 0;
    int result1 = 0;

    for (int i = 0; i < words.length; i++) {

        StringBuilder sb = new StringBuilder();
        sb.append(words[i]);
        sb.reverse();
        if (words[i].equals(sb.toString())) {
           return words[i];

        }
    }
    return "";
}

` 我不知道该怎么做.. 这是字符串数组( case","earring","water","kayak","mom","surfboard","racecar" );