Unable to Understand Output Of Code

[Ankit Garg]

This is the code...

What will happen if you invoke the following method?

public void check()
{
   System.out.println(Math.min(-0.0,+0.0));
   System.out.println(Math.max(-0.0,+0.0));
   System.out.println(Math.min(-0.0,+0.0) == Math.max(0.0,+0.0));
}

A) prints -0.0, +0.0 and false.
B) prints -0.0, +0.0 and true.
C) prints 0.0, 0.0 and false.
D) prints 0.0, 0.0 and true.

Correct answer: B.

Explanation:The order of floating/double values is -Infinity --> Negative Numbers/Fractions --> -0.0 --> +0.0 --> Positive Numbers/Fractions --> Infinity.

Source: http://www.geocities.com/skmajji/Main.html

[Henry Wong]

It will help if you explain to us, what did you expect the output of the code to be?

Henry

[Vinod Kumar Kommineni]

Hi ankit the answer is correct .. check this source to get clarified

http://www.janeg.ca/scjp/oper/comparison.html

[Vinod Kumar Kommineni]

positive and negative zero are considered equal therefore
-0.0 < 0.0 is false and -0.0 <= 0.0 is true but this is not the case with Math.min() and Math.max()... the last statement is indeed -0.0==+0.0 therefore its true . i hope its your doubt.

[Ankit Garg]

thanks......Now I got it completely........