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) { Pattern pattern = Pattern.compile("\\s*|\t|\r|\n"); Matcher matcher = pattern.matcher(str); return matcher.replaceAll(""); }/*from w w w. j av a 2 s . c om*/ }