Java tutorial
//package com.java2s; /* * CollectionUtil.java * * This file is part of SQL Workbench/J, http://www.sql-workbench.net * * Copyright 2002-2017, Thomas Kellerer * * Licensed under a modified Apache License, Version 2.0 * that restricts the use for certain governments. * You may not use this file except in compliance with the License. * You may obtain a copy of the License at. * * http://sql-workbench.net/manual/license.html * * 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. * * To contact the author please send an email to: support@sql-workbench.net * */ import java.util.ArrayList; import java.util.Arrays; import java.util.List; public class Main { public static <E> List<E> arrayList(List<E> source) { return new ArrayList<>(source); } public static <E> List<E> arrayList() { return new ArrayList<>(); } /** * Create an ArrayList from the given elements. The returned list * can be changed (in constrast to Arrays.asList() where a non-modifieable list * is returned) */ public static <E> List<E> arrayList(E... a) { ArrayList<E> result = new ArrayList<>(a.length); result.addAll(Arrays.asList(a)); return result; } }