Merging different files in Java

Question

I have data files (e.g. text, image, …) and a digital signature of these files. I need to merge them into one file and send this file over a network. Is it possible to merge two or more different files into one, so I can later split that one file into several files, as it was before the merge? This split and merge would have to be done using my program written in Java.

Answer 1

You could create a tar file or a zip file:

Creating tar-files in java: https://github.com/kamranzafar/jtar

Creating zip-files in java: https://www.mkyong.com/java/how-to-compress-files-in-zip-format/