Java tutorial
//package com.java2s; /* * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. This file 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.LinkedList; import java.util.List; public class Main { /** * Returns a new list containing the second list appended to the first list. */ public static <T> List<T> mergeLists(List<T> list1, List<T> list2) { List<T> merged = new LinkedList<T>(); if (list1 != null) { merged.addAll(list1); } if (list2 != null) { merged.addAll(list2); } return merged; } }