Re:The complete guide to working with strings in modern Java...
by crazygringo on Tuesday April 13, 2021 @03:18PM
(#26797624)
This might also help you:
https://stackoverflow.com/questions/4547609/how-to-get-chara...
e.g. use Array.from() to at least process code points rather than code units, though that's still not graphemes.
I'll read up on it until I understand it, and then add something to the article that covers it.