整数反转

 public static int reverseInt(int num) {
        long rs = 0;

        while (num != 0) {
            rs = rs * 10 + num % 10;
            num = num / 10;
        }
        return rs > Integer.MAX_VALUE || rs < Integer.MIN_VALUE ? 0 : (int) rs;
    }

 public static void main(String[] args) {
        int i = reverseInt(-14236469);
        System.out.println(i);
    }