Write code to replace Blank in a string with regex
//package com.book2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static void main(String[] argv) { String str = "book2s.com"; System.out.println(replaceBlank(str)); }//www . java 2s . c o m public static String replaceBlank(String str) { String dest = ""; if (str != null) { Pattern p = Pattern.compile("\\s*|\t|\r|\n"); Matcher m = p.matcher(str); dest = m.replaceAll(""); } return dest; } }