byte manipulation in Java ?

[Ph. Barthelemy]

Hi,

I am looking a byte manipulation library in Java ( with functions such
as get the MSB, the LSB, decode/encode a Binary-coded decimal, etc...
for the various Java data types ).

I did not find anything included in J2se 1.4.
Is there a well-known library to do this ? or should rewrite my own
from scratch ( not very difficult, not very satisfying either to
reinvent the wheel... )

TIA,
--Philippe

 

[Axl]

Is there a well-known library to do this ?

You may want to look at the J.A.D.E. (open source) library,
specifically jade.util.Struct.

http://jade.dautelle.com/

Also the java.nio.* classes.

http://java.sun.com/j2se/1.5.0/docs/api/java/nio/package-summary.html

(There may be other libraries out there to handle this type of thing,
however I'm only familiar with J.A.D.E.)


Axl

Axl Weslowski
aweslowski_@_rpa.com
(remove_the_underscores)

 

[Chris Uppal]

I am looking a byte manipulation library in Java ( with functions such
as get the MSB, the LSB, decode/encode a Binary-coded decimal, etc...
for the various Java data types ).

I just happened to notice this is the JDK1.5 change list:

=============
The wrapper classes (Integer, Long, Short, Byte, and Char) now support common
bit manipulation operations which include highestOneBit, lowestOneBit,
numberOfLeadingZeros, numberOfTrailingZeros, bitCount, rotateLeft, rotateRight,
reverse, signum, and reverseBytes.
=============

Might help.

-- chris

 

[Ph. Barthelemy]

OK, well, I hope the move over 1.5 will be quick.

thanks everyone for your answers...

--P