【LeetCode】Reverse Integer

http://oj.leetcode.com/problems/reverse-integer/

public class Solution {
    public int reverse(int x) {
        String strX = Integer.toString(x);
        int len = strX.length();
        StringBuffer dest = new StringBuffer(len);
        if (x >= 0) {
            for (int i = len - 1; i >= 0; i--) {
                dest.append(strX.charAt(i));
            }
        } else {
            dest.append('-');
            for (int i = len - 1; i >= 1; i--) {
                dest.append(strX.charAt(i));
            }
        }
        return Integer.parseInt(dest.toString());
    }
}