Which of the following is good coding practice to determine

Which of the following is good coding practice to determine oddity?
i)

public boolean Calc(int n)
{
	return (n & 1)!= 0;
 }

ii)

public boolen Calc(int n)
{
	return n % 2 == 1;
}

1. i
2. ii
3. option (i) causes compilation error
4. option (ii) causes compilation error
5. None of these

Arithmetic and logical operations are much faster than division and multiplication.