【Leetcode】Reverse Integer

题目链接：https://leetcode.com/problems/reverse-integer/
题目：

Reverse digits of an integer.

Example1: x = 123, return 321
Example2: x = -123, return -321

思路：

注意正负情况

算法：

 public int reverse(int x) {
     char c[] = String.valueOf(Math.abs(x)).toCharArray();
     for (int i = 0; i < c.length / 2; i++) {
         char tmp = c[c.length - i - 1];
         c[c.length - 1 - i] = c[i];
         c[i] = tmp;
     }
     try {
         if (x >= 0) {
             return Integer.parseInt(String.valueOf(c));
         } else {
             return -Integer.parseInt(String.valueOf(c));
         }
     } catch (NumberFormatException e) {
         return 0;
     }
 }