9. Palindrome Number

 

 

 

 

class Solution {
    public boolean isPalindrome(int x) {
        String str = String.valueOf(x);
        int start = 0;
        int end = str.length() - 1;
        while(start < end){
            if(str.charAt(start++) != str.charAt(end--)) return false;
        }
        return true;
        
    }
}