Java Regex - Using String's replaceAll method to replace newlines

Question

I have a string and would like to simply replace all of the newlines in it with the string " --linebreak-- ".

Would it be enough to just write:

string = string.replaceAll("\n", " --linebreak-- "); 

I'm confused with the regex part of it. Do I need two slashes for the newline? Is this good enough?

Answer 1

Don't use regex!. You only need a plain-text match to replace "\n".

Use replace() to replace a literal string with another:

string = string.replace("\n", " --linebreak-- "); 

Note that replace() still replaces all occurrences, as does replaceAll() - the difference is that replaceAll() uses regex to search.

Answer 2

Use below regex:

 s.replaceAll("\\r?\\n", " --linebreak-- ") 

There's only really two newlines for UNIX and Windows OS.