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

Question

How do you remove the \\n, \\t and spaces between strings in java?

Answer 1

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

\s A whitespace character: [ \t\n\x0B\f\r]

java.util.regex.Pattern has all the predefined classes.

Answer 2

Use String.replaceAll with a regular expression to remove all whitespace:

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