Here you can find the source of startsWith(List
public static <E> boolean startsWith(List<E> list0, List<E> list1)
//package com.java2s; /*/*from ww w. ja v a2 s . com*/ * 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.List; public class Main { /** Returns whether one list is a prefix of another. */ public static <E> boolean startsWith(List<E> list0, List<E> list1) { return list0.equals(list1) || list0.size() > list1.size() && list0.subList(0, list1.size()).equals(list1); } }