001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019
020package org.apache.commons.compress.utils;
021
022import java.util.ArrayList;
023import java.util.Iterator;
024
025/**
026 * List utilities
027 *
028 * @since 1.13
029 */
030public class Lists {
031
032    /**
033     * Creates a new {@link ArrayList}.
034     *
035     * @param <E> type of elements contained in new list
036     * @return a new {@link ArrayList}
037     */
038    public static <E> ArrayList<E> newArrayList() {
039        return new ArrayList<>();
040    }
041
042    /**
043     * Creates a new {@link ArrayList} filled with the contents of the given {@code iterator}.
044     *
045     * @param iterator the source iterator
046     * @param <E>      type of elements contained in new list
047     * @return a new {@link ArrayList}
048     */
049    public static <E> ArrayList<E> newArrayList(final Iterator<? extends E> iterator) {
050        final ArrayList<E> list = newArrayList();
051        Iterators.addAll(list, iterator);
052        return list;
053    }
054
055    private Lists() {
056        // do not instantiate
057    }
058
059}