home *** CD-ROM | disk | FTP | other *** search
Java Source | 1998-09-22 | 2.1 KB | 66 lines |
- /*
- * @(#)Enumeration.java 1.12 98/07/01
- *
- * Copyright 1995-1998 by Sun Microsystems, Inc.,
- * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
- * All rights reserved.
- *
- * This software is the confidential and proprietary information
- * of Sun Microsystems, Inc. ("Confidential Information"). You
- * shall not disclose such Confidential Information and shall use
- * it only in accordance with the terms of the license agreement
- * you entered into with Sun.
- */
-
- package java.util;
-
- /**
- * An object that implements the Enumeration interface generates a
- * series of elements, one at a time. Successive calls to the
- * <code>nextElement</code> method return successive elements of the
- * series.
- * <p>
- * For example, to print all elements of a vector <i>v</i>:
- * <blockquote><pre>
- * for (Enumeration e = v.elements() ; e.hasMoreElements() ;) {
- * System.out.println(e.nextElement());<br>
- * }
- * </pre></blockquote>
- * <p>
- * Methods are provided to enumerate through the elements of a
- * vector, the keys of a hashtable, and the values in a hashtable.
- * Enumerations are also used to specify the input streams to a
- * <code>SequenceInputStream</code>.
- *
- * @see java.io.SequenceInputStream
- * @see java.util.Enumeration#nextElement()
- * @see java.util.Hashtable
- * @see java.util.Hashtable#elements()
- * @see java.util.Hashtable#keys()
- * @see java.util.Vector
- * @see java.util.Vector#elements()
- *
- * @author Lee Boynton
- * @version 1.12, 07/01/98
- * @since JDK1.0
- */
- public interface Enumeration {
- /**
- * Tests if this enumeration contains more elements.
- *
- * @return <code>true</code> if this enumeration contains more elements;
- * <code>false</code> otherwise.
- * @since JDK1.0
- */
- boolean hasMoreElements();
-
- /**
- * Returns the next element of this enumeration.
- *
- * @return the next element of this enumeration.
- * @exception NoSuchElementException if no more elements exist.
- * @since JDK1.0
- */
- Object nextElement();
- }
-