Here you can find the source of split(String str, String separator, boolean preserveEmptyToken)
| Parameter | Description |
|---|---|
| str | the string to be split |
| separator | the separator |
| preserveEmptyToken | if set this to true, we preserve all empty tokens |
public static final String[] split(String str, String separator, boolean preserveEmptyToken)
//package com.java2s; /**/* ww w . jav a 2 s . c o m*/ * StringUtil.java * * Copyright 2012 Niolex, Inc. * * Niolex licenses this file to you under the Apache License, version 2.0 * (the "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ import java.util.ArrayList; import java.util.List; public class Main { /** * Split the string into tokens by the specified separator. We will preserve all the empty * tokens if you need. * <br> * This is a replacement of {@link String#split(String)}, which using regex. * * @param str the string to be split * @param separator the separator * @param preserveEmptyToken if set this to true, we preserve all empty tokens * @return the token array */ public static final String[] split(String str, String separator, boolean preserveEmptyToken) { List<String> list = new ArrayList<String>(); int start = 0, i = 0, len = separator.length(), total = str.length(); while ((i = str.indexOf(separator, start)) != -1) { if (start != i || preserveEmptyToken) { list.add(str.substring(start, i)); } start = i + len; } if (start != total || preserveEmptyToken) { list.add(str.substring(start, total)); } return list.toArray(new String[list.size()]); } }