Palindrome Number

public class Solution {

public static boolean isPalindrome(int x) {

if (x < 0)
return false;
int temp = x;
int flag = 0;
while (x != 0) {
flag = flag * 10 + x % 10;
x = x / 10;
}

if (flag == temp)
return true;
else
return false;
}
}