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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.commons.compress.utils;
21  
22  import java.util.ArrayList;
23  import java.util.Iterator;
24  
25  /**
26   * List utilities
27   *
28   * @since 1.13
29   */
30  public class Lists {
31  
32      /**
33       * Creates a new {@link ArrayList}.
34       *
35       * @param <E> type of elements contained in new list
36       * @return a new {@link ArrayList}
37       */
38      public static <E> ArrayList<E> newArrayList() {
39          return new ArrayList<>();
40      }
41  
42      /**
43       * Creates a new {@link ArrayList} filled with the contents of the given {@code iterator}.
44       *
45       * @param iterator the source iterator
46       * @param <E>      type of elements contained in new list
47       * @return a new {@link ArrayList}
48       */
49      public static <E> ArrayList<E> newArrayList(final Iterator<? extends E> iterator) {
50          final ArrayList<E> list = newArrayList();
51          Iterators.addAll(list, iterator);
52          return list;
53      }
54  
55      private Lists() {
56          // do not instantiate
57      }
58  
59  }