Palindrome Number LeetCode- Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward.

palindrome.java

class Solution {
    public boolean isPalindrome(int x) {
            int num = x;
        boolean flag = false;
        if (x < 0 || (x % 10 == 0 && x != 0)) return flag;
        long r = 0;
        while (x > 0) {
            r = r * 10 + x % 10;
            x /= 10;
        }
        if (r == num) {
            flag = true;
            return flag;
        }
        return flag;

    }


}