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.Collections; 23 import java.util.HashSet; 24 25 /** 26 * Set utilities 27 * 28 * @since 1.13 29 */ 30 public class Sets { 31 32 /** 33 * Creates a new HashSet filled with the given elements 34 * 35 * @param elements the elements to fill the new set 36 * @param <E> type of elements contained in new set 37 * @return A new HasSet 38 */ 39 @SafeVarargs 40 public static <E> HashSet<E> newHashSet(final E... elements) { 41 final HashSet<E> set = new HashSet<>(elements != null ? elements.length : 0); 42 if (elements != null) { 43 Collections.addAll(set, elements); 44 } 45 return set; 46 } 47 48 private Sets() { 49 // Do not instantiate 50 } 51 }