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Sorry for keepin you wait so ling. I edited the code with a main.
It also has the current output and the desired output.

Will poste one when I get home

Oh sorry I forgot, it gets called from a JPanel clickhandler.
A file gets converted to an array and eventually it runs this:
createGroups.combinationUtil(names, data, 0, n-1, 0, r);
In which...

Hi,

I'm airgmbop (screen name ofc) and I'm from the Netherlands.
I'm currently in my 2nd out of 3 years of my study. I study application development.

I can do some things in Java but I'm still...

I need to make every possible version of a list of groups by a text file full of names.

I have the part where it makes unique groups (it all gets stored in a List<List<String>> called rootList)...