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public int reverse(int x) {
        
        long reverse = 0;

        boolean negative = false;
        if (x < 0) {
            negative = true;
            x *= -1;
        }

        while (x != 0) {
            int lastDigit = x % 10;
            reverse = reverse * 10 + lastDigit;
            x = x / 10;

            if (reverse > Integer.MAX_VALUE || reverse < Integer.MIN_VALUE) {
                reverse = 0;
                break;
            }
        }

        if (negative) {
            reverse *= -1;
        }

        return (int)reverse;
    }