01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package java.util;
19:
20: /**
21: * An Enumeration is used to sequence over a collection of objects.
22: *
23: * @see Hashtable
24: * @see Properties
25: * @see Vector
26: * @version 1.0
27: */
28: public interface Enumeration<E> {
29: /**
30: * Answers if this Enumeration has more elements.
31: *
32: * @return true if there are more elements, false otherwise
33: *
34: * @see #nextElement
35: */
36: public boolean hasMoreElements();
37:
38: /**
39: * Answers the next element in this Enumeration.
40: *
41: * @return the next element in this Enumeration
42: *
43: * @exception NoSuchElementException
44: * when there are no more elements
45: *
46: * @see #hasMoreElements
47: */
48: public E nextElement();
49: }
|