How to remove \ n, \ t and spaces between lines in java?

Question

How to remove \ n, \ t and spaces between lines in java?

Answer 1

str.replaceAll("\\s+", "");

\ s Simple character: [\ t \ n \ x0B \ f \ r]

java.util.regex.Pattern contains all predefined classes.

Answer 2

Use String.replaceAll with regex to remove all spaces:

s = s.replaceAll("\\s+", "");