Removing invisible characters from the end of a Java String

Question

how can i find the last visible character in a Java String? I'd like to remove all line breaks and other invisible characters from a Java String

Kind Regards, Tord

Look at this [answer](http://stackoverflow.com/questions/10805125/how-to-remove-all-line-breaks-from-a-string) — Javier Haro, Sep 20 '15 at 22:47

score 13 · Answer 1 · answered Sep 20 '15 at 22:46

13

string_variable.replaceAll("\\p{C}", "?");

This will replace all non-printable characters. Where p{C} selects the invisible control characters and unused code points.

answered Sep 20 '15 at 22:46

Thank you for your help, unfortunately this will remove all characters, i'm trying to find the last visible character in an article (like maybe a period or a letter or a number). Then i can remove the rest of the characters that are coming after that – sunyata Sep 20 '15 at 22:49

Mick Mnemonic · Accepted Answer · 2015-09-20T22:49:37.093

4

You can use the trim() method of the String class for removing trailing (and leading) white space and line breaks:

String trimmed = original.trim();

edited Sep 20 '15 at 22:49

answered Sep 20 '15 at 22:44

Mick Mnemonic

trim does not remove '\u200B' (zero width space). which is the problem I was having. Using .replaceAll("\\p{C}", "?") from the more upvoted answer worked for me – Cumulo Nimbus Sep 21 '22 at 23:14

2 Answers2