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Java.lang Class - Programming

Q1:

Which of the following will produce an answer that is closest in value to a double, d, while not being greater than d?

A (int)Math.min(d);

B (int)Math.max(d);

C (int)Math.abs(d);

D (int)Math.floor(d);

ANS:D - (int)Math.floor(d);

The casting to an int is a smokescreen. Use a process of elimination to answer this question: Option D is the correct answer, it is syntathecially correct and will consistently return a value less than d. Option A and B are wrong because both the min() and max() methods require 2 arguments whereas here they are passed only one parameter. Option C is wrong because it could return a value greater than d (if d was negative).