/* * Copyright (c) 2011-2014 Fernando Petrola * * 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; import java.util.stream.Stream; public interface Collection<E> extends Iterable<E> { default Stream<E> stream() { return new StreamImpl<E, E>(this); } public boolean add(E element); public void clear(); public boolean contains(Object value); public boolean equals(Object o); public boolean isEmpty(); public Iterator<E> iterator(); public boolean remove(Object elem); public int size(); public Object[] toArray(); public <T> T[] toArray(T[] target); boolean addAll(Collection<? extends E> c); boolean containsAll(Collection<?> c); boolean removeAll(Collection<?> c); boolean retainAll(Collection<?> c); }