divide two integers

public int (int dividend, int divisor) {
    if (divisor == 1)
        return dividend;
    if (dividend == Integer.MIN_VALUE && divisor == -1)
        return Integer.MAX_VALUE;
    int sign = (dividend > 0 ^ divisor > 0) ? -1 : 1;
    long ans = 0;
    long begin = Math.abs((long)divisor);
    long end = Math.abs((long)dividend);
    while (begin <= end) {
        long temp = begin;
        long num = 1;
        while ((temp << 1) < end) {
            temp <<= 1;
            num <<= 1;
        }
        ans += num;
        end -= temp;
    }
    return (int)(sign * ans);
}