Here you can find the source of split(String[] srcArray, String delimiterRegExp)
public static List<String> split(String[] srcArray, String delimiterRegExp)
//package com.java2s; /*/* w w w . j ava2s .c o m*/ * JasperReports - Free Java Reporting Library. * Copyright (C) 2001 - 2014 TIBCO Software Inc. All rights reserved. * http://www.jaspersoft.com * * Unless you have purchased a commercial license agreement from Jaspersoft, * the following license terms apply: * * This program is part of JasperReports. * * JasperReports is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JasperReports is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with JasperReports. If not, see <http://www.gnu.org/licenses/>. */ import java.util.ArrayList; import java.util.List; public class Main { /** * */ public static List<String> split(String[] srcArray, String delimiterRegExp) { List<String> tokens = null; if (srcArray != null) { tokens = new ArrayList<String>(); for (int i = 0; i < srcArray.length; i++) { if (srcArray[i] == null) { tokens.add(null); } else { String[] currentTokensArray = srcArray[i] .split(delimiterRegExp); for (int j = 0; j < currentTokensArray.length; j++) { tokens.add(currentTokensArray[j].trim()); } } } } return tokens; } }