/* * 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; import static javaemul.internal.InternalPreconditions.checkNotNull; import java.util.function.Consumer; /** * See <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html"> * the official Java API doc</a> for details. * * @param <E> element type */ public interface Iterator<E> { boolean hasNext(); E next(); default void forEachRemaining(Consumer<? super E> consumer) { checkNotNull(consumer); while (hasNext()) { consumer.accept(next()); } } default void remove() { throw new UnsupportedOperationException(); } }