i have the snippet of code od SCJP book
Which code, when inserted at (1), will provide a correct implementation of the
hashCode() method in the following program?
Select the two correct answers.
(a) return 31337;
(b) return accumulated / count;
(c) return (count << 16) ^ accumulated;
(d) return ~accumulated;
(e) return count == 0 ? 0 : average();
the correct answer is (a) and (e)
(b) is incorrect because of count if it is null it will genearte arithmetic Exception
but i don't now the mean of (c) and (d) and why are false