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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
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0N/A * You should have received a copy of the GNU General Public License version
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0N/A */
0N/A
0N/Apackage java.util;
0N/A
0N/A/**
0N/A * An object that implements the Enumeration interface generates a
0N/A * series of elements, one at a time. Successive calls to the
0N/A * <code>nextElement</code> method return successive elements of the
0N/A * series.
0N/A * <p>
0N/A * For example, to print all elements of a <tt>Vector&lt;E&gt;</tt> <i>v</i>:
0N/A * <pre>
0N/A * for (Enumeration&lt;E&gt; e = v.elements(); e.hasMoreElements();)
0N/A * System.out.println(e.nextElement());</pre>
0N/A * <p>
0N/A * Methods are provided to enumerate through the elements of a
0N/A * vector, the keys of a hashtable, and the values in a hashtable.
0N/A * Enumerations are also used to specify the input streams to a
0N/A * <code>SequenceInputStream</code>.
0N/A * <p>
0N/A * NOTE: The functionality of this interface is duplicated by the Iterator
0N/A * interface. In addition, Iterator adds an optional remove operation, and
0N/A * has shorter method names. New implementations should consider using
0N/A * Iterator in preference to Enumeration.
0N/A *
0N/A * @see java.util.Iterator
0N/A * @see java.io.SequenceInputStream
0N/A * @see java.util.Enumeration#nextElement()
0N/A * @see java.util.Hashtable
0N/A * @see java.util.Hashtable#elements()
0N/A * @see java.util.Hashtable#keys()
0N/A * @see java.util.Vector
0N/A * @see java.util.Vector#elements()
0N/A *
0N/A * @author Lee Boynton
0N/A * @since JDK1.0
0N/A */
0N/Apublic interface Enumeration<E> {
0N/A /**
0N/A * Tests if this enumeration contains more elements.
0N/A *
0N/A * @return <code>true</code> if and only if this enumeration object
0N/A * contains at least one more element to provide;
0N/A * <code>false</code> otherwise.
0N/A */
0N/A boolean hasMoreElements();
0N/A
0N/A /**
0N/A * Returns the next element of this enumeration if this enumeration
0N/A * object has at least one more element to provide.
0N/A *
0N/A * @return the next element of this enumeration.
0N/A * @exception NoSuchElementException if no more elements exist.
0N/A */
0N/A E nextElement();
0N/A}