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-/* Iterator.java -- Interface for iterating over collections
- Copyright (C) 1998, 2001, 2004, 2005 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.util;
-
-/**
- * An object which iterates over a collection. An Iterator is used to return
- * the items once only, in sequence, by successive calls to the next method.
- * It is also possible to remove elements from the underlying collection by
- * using the optional remove method. Iterator is intended as a replacement
- * for the Enumeration interface of previous versions of Java, which did not
- * have the remove method and had less conveniently named methods.
- *
- * @author Original author unknown
- * @author Eric Blake (ebb9@email.byu.edu)
- * @see Collection
- * @see ListIterator
- * @see Enumeration
- * @since 1.2
- * @status updated to 1.4
- */
-public interface Iterator<E>
-{
- /**
- * Tests whether there are elements remaining in the collection. In other
- * words, calling <code>next()</code> will not throw an exception.
- *
- * @return true if there is at least one more element in the collection
- */
- boolean hasNext();
-
- /**
- * Obtain the next element in the collection.
- *
- * @return the next element in the collection
- * @throws NoSuchElementException if there are no more elements
- */
- E next();
-
- /**
- * Remove from the underlying collection the last element returned by next
- * (optional operation). This method can be called only once after each
- * call to <code>next()</code>. It does not affect what will be returned
- * by subsequent calls to next.
- *
- * @throws IllegalStateException if next has not yet been called or remove
- * has already been called since the last call to next.
- * @throws UnsupportedOperationException if this Iterator does not support
- * the remove operation.
- */
- void remove();
-}