palindrome-number

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

思路：将数字reverse，查看是否相同考虑空间复杂性，

public class Solution {    public boolean isPalindrome(int x) {        int oldvalue=x;        int temp=0;        while(x>0){            temp=temp*10+x%10;            x/=10;        }        return oldvalue==temp;            }}