Here you can find the source of split(String str, char c)
public static List<String> split(String str, char c)
//package com.java2s; /*/* ww w. java 2 s .c om*/ * Copyright (c) 2011-2018, Meituan Dianping. All Rights Reserved. * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF 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 { public static List<String> split(String str, char c) { List<String> results = new ArrayList<String>(); for (int i = 0; i < str.length();) { StringBuilder sb = new StringBuilder(); for (int j = i; j < str.length(); j++) { char tmp = str.charAt(j); if (j == str.length() - 1) { sb.append(tmp); results.add(sb.toString()); i = j + 1; break; } else if (tmp == c) { results.add(sb.toString()); i = j + 1; break; } else { sb.append(tmp); } } } return results; } }