Java - Write code to Remove all whitespaces and non visible characters such as tab, \n. using regex

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Requirements

Write code to Remove all whitespaces and non visible characters such as tab, \n. using regex

Demo

//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        String str = "book2s.com";
        System.out.println(removeAllSpace(str));
    }//w  w  w.ja  v a  2  s.  com

    /**
     * Remove all whitespaces and non visible characters such as tab, \n.
     * 
     * @param str
     * @return String
     */
    public static String removeAllSpace(String str) {
        return str.replaceAll("\\s+", "");
    }
}

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