How to add files with the same name (but with different case) to a zip archive?

Question

Data archiving

Good day.
Please help me understand my issue.
Is it possible to add files with the same name to a zip archive?
For example: eeee.class | EeEe.class | EEEE.class, well, by analogy.
If yes, how can this be done?
Thank you!

Answer 1

[email protected]:/tmp$ zip -r file.zip zip/
  adding: zip/ (stored 0%)
  adding: zip/eee (stored 0%)
  adding: zip/Eee (stored 0%)
  adding: zip/eEE (stored 0%)
  adding: zip/eeE (stored 0%)
  adding: zip/EEE (stored 0%)
  adding: zip/eEe (stored 0%)
  adding: zip/EEe (stored 0%)

rghost.ru/52354110 the resulting file.
It's all in the console in Linux.
Unpacking the entire archive later will not work, of course. Open in the archiver and pull the files one by one into different directories - quite.