Here you can find the source of replaceBlank(String str)
public static String replaceBlank(String str)
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static String replaceBlank(String str) { String dest = ""; if (null == str) { return "esolving error!"; }/*from www. j a v a 2 s . c o m*/ if (str != null) { Pattern p = Pattern.compile("\\s*|\t|\r|\n"); Matcher m = p.matcher(str); dest = m.replaceAll(""); } return dest; } }