Reverse Integer

If result is overflow, then return -1.

public class Solution {
    public int reverse(int x) {
        // IMPORTANT: Please reset any member data you declared, as
        // the same Solution instance will be reused for each test case.
        boolean positive = true;
        if(x < 0)
            positive = false;
        x = Math.abs(x);
        int result = 0;
        while(x>0)
        {
            result = result * 10 + x % 10;
            x /= 10;
        }
        if(result < 0)
            return -1;
        return positive?result:(-1*result);
        
    }
}