leetcode reverse integer&&Palindrome Number

public class Solution {
public int reverse(int x) {
int ret=0;
while(x!=0)
{
int t=x%10;
ret=ret*10+t;
x=x/10;

}

return ret;

}
}

public class Solution {
    public boolean isPalindrome(int x) {
        if(x<0) return false;
        if(x==0) return true;
        int ret=0;
        int xold=x;
        while(x!=0)
        {
           int temp= x%10; // zui hou yi wei
           ret=ret*10+temp;

           x=x/10;

        }

        if(ret==xold) return true;
        return false;

    }
}