9 Palindrome Number

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

Example 1:

Input: 121
Output: true



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