| /* |
| * Copyright 2007 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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. |
| */ |
| package java.util; |
| |
| /** |
| * Represents a set of unique objects. <a |
| * href="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html">[Sun docs]</a> |
| * |
| * @param <E> element type. |
| */ |
| public interface Set<E> extends Collection<E> { |
| |
| boolean add(E o); |
| |
| boolean addAll(Collection<? extends E> c); |
| |
| void clear(); |
| |
| boolean contains(Object o); |
| |
| boolean containsAll(Collection<?> c); |
| |
| boolean equals(Object o); |
| |
| int hashCode(); |
| |
| boolean isEmpty(); |
| |
| Iterator<E> iterator(); |
| |
| boolean remove(Object o); |
| |
| boolean removeAll(Collection<?> c); |
| |
| boolean retainAll(Collection<?> c); |
| |
| int size(); |
| |
| Object[] toArray(); |
| |
| <T> T[] toArray(T[] a); |
| |
| } |