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82 lines
3.1 KiB
Java
82 lines
3.1 KiB
Java
/* Enumeration.java -- Interface for enumerating lists of objects
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Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.util;
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/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
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* "The Java Language Specification", ISBN 0-201-63451-1.
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* Status: Believed complete and correct
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*/
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/**
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* Interface for lists of objects that can be returned in sequence. Successive
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* objects are obtained by the nextElement method.
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* <p>
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* As of Java 1.2, the Iterator interface provides the same functionality, but
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* with shorter method names and a new optional method to remove items from the
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* list. If writing for 1.2, consider using Iterator instead. Enumerations over
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* the new collections classes, for use with legacy APIs that require them, can
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* be obtained by the enumeration method in class Collections.
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*
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* @author Warren Levy <warrenl@cygnus.com>
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* @author Eric Blake <ebb9@email.byu.edu>
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* @see Iterator
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* @see Hashtable
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* @see Vector
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* @since 1.0
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* @status updated to 1.4
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*/
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public interface Enumeration
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{
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/**
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* Tests whether there are elements remaining in the enumeration.
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*
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* @return true if there is at least one more element in the enumeration,
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* that is, if the next call to nextElement will not throw a
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* NoSuchElementException.
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*/
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boolean hasMoreElements();
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/**
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* Obtain the next element in the enumeration.
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*
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* @return the next element in the enumeration
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* @throws NoSuchElementException if there are no more elements
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*/
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Object nextElement();
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}
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