java判断字符串回文

public static void main(String[] args) throws Exception {
        String ss = "aghdtdhga";
        char[] cc = ss.trim().toCharArray();
        int first = 0;
        int last = cc.length - 1;
        while (first < last) {
            if (cc[first++] != cc[last--]) {
                System.out.println("false");
            }
        }
        System.out.println("true");

    }