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-0.0 == 0.0 ? help

 
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What will happen if you invoke the following method? B is the answer but why?
-------------
1: public void check()
2: {
3: System.out.println(Math.min(-0.0,+0.0));
4: System.out.println(Math.max(-0.0,+0.0));
5: System.out.println(Math.min(-0.0,+0.0) == Math.max(0.0,+0.0));
6: }

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.
 
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Zero is signed and hence negative zero is less than positive zero. However, for equality purposes( ie == ) they are equal!!.
Strange as it may seem, this is one of my favourite gotcha! 's
Ajith
 
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Thanks Ajith I also always semed to have this doubt.
Regards,
Shankar.
 
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