Bug with double division ??

Hello,
first sorry my bad english...
I am trying to convert a C program in java and i had a big problem with double division.
For example, my program needs to do that :
double d = 2. * 3.1415926 ;
double d2=511;
double d3=d/d2;
The value in memory of d3 is 0x3f892e92965e074e whereas with my original C program, for the same code) the value in memory is 0x3f892e92965e074d !!!!!! (the last byte is different)
So what is the problem ? Is the double division in java different with the C language or is it my code which has a problem ??
Thanks a lot

It could be different than (some implementation of) C, but that doesn't mean it's a bug or a problem. Java is supposed to implement an IEEE floating point specification; if you can demonstrate that it's not following that spec (I think it's IEEE 754) then report it as a bug. Incidentally, do Java and your version of C implement 3.1415926 the same way?
(Also, if that number is supposed to be pi, then the inaccuracy you claim in Java is much less than the inaccuracy you made by using an approximation to pi.)

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