Here you can find the source of split(final String str, final String delim)
public static String[] split(final String str, final String delim)
//package com.java2s; /*// w w w.j av a 2 s. co m * Copyright 2004-2011 the Seasar Foundation and the Others. * * Licensed 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; import java.util.StringTokenizer; public class Main { public static final String[] EMPTY_STRINGS = new String[0]; public static String[] split(final String str, final String delim) { if (isEmpty(str)) { return EMPTY_STRINGS; } List list = new ArrayList(); StringTokenizer st = new StringTokenizer(str, delim); while (st.hasMoreElements()) { list.add(st.nextElement()); } return (String[]) list.toArray(new String[list.size()]); } public static final boolean isEmpty(final String text) { return text == null || text.length() == 0; } }