LeetCode Palindrome Number

Determine whether an integer is a palindrome. Do this without extra space.

/**
 * 判断整数是否为回文,
 * 负数不是,10整数倍不是.0~9是.
 * Created by ustc-lezg on 16/4/6.
 */
public class Solution {

    public boolean isPalindrome(int x) {
        if (x < 0) {
            return false;
        }
        if (x < 10) {
            return true;
        }
        if (x % 10 == 0) {
            return false;
        }
        int y = 0;
        while (x > y) {
            y = y * 10 + x % 10;
            x /= 10;
        }
        if (y > x) {//x为奇数,y > x
            y /= 10;
        }
        return x == y ? true : false;
    }

}