Here you can find the source of getLast(List
public static <T> T getLast(List<T> list)
//package com.java2s; /*/*from w w w . j av a 2 s . c o m*/ * 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.Collection; import java.util.List; public class Main { public static <T> T getLast(List<T> list) { if (isEmpty(list)) { return null; } return list.get(list.size() - 1); } /*************************** empty ****************************************/ public static <T> boolean isEmpty(Collection<T> collection) { return collection == null || collection.isEmpty(); } }