Removing invisible characters from the end of a Java String

问题

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

回答1:

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

String trimmed = original.trim();

回答2:

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

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

来源：https://stackoverflow.com/questions/32685047/removing-invisible-characters-from-the-end-of-a-java-string