leetcode 7.反転整数(java)

class Solution {
    public int reverse(int x) {
        long result = 0;
        while (x != 0){
            result = result * 10 + x % 10;
            x = x / 10;
        }
        if (result > Integer.MAX_VALUE || result < Integer.MIN_VALUE){
            return 0;
        }
        return (int)result;
    }
    
}