Java Regex remove new lines, but keep spaces.

Question

For the string " \n a b c \n 1 2 3 \n x y z " I need it to become "a b c 1 2 3 x y z".

Using this regex str.replaceAll("(\s|\n)", ""); I can get "abc123xyz", but how can I get spaces in between.

Answer 1

You don't have to use regex; you can use trim() and replaceAll() instead.

 String str = " \n a b c \n 1 2 3 \n x y z ";
 str = str.trim().replaceAll("\n ", "");

This will give you the string that you're looking for.