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it works very well.
thanks

thank you
after unpacking the zip file, i found this jar file "commons-codec-1.9.jar", and i put it in the same class directory.
I am using netbeans IDE, what is the next step, please?

Hello

I want to use this method Hex.decodeHex() in my class, but there is something wrong with import statement!!
I wrote : import org.apache.commons.codec.binary.Hex;

but it said that the...