OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [java/] [util/] [Iterator.java] - Blame information for rev 771

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 771 jeremybenn
/* Iterator.java -- Interface for iterating over collections
2
   Copyright (C) 1998, 2001, 2004, 2005 Free Software Foundation, Inc.
3
 
4
This file is part of GNU Classpath.
5
 
6
GNU Classpath is free software; you can redistribute it and/or modify
7
it under the terms of the GNU General Public License as published by
8
the Free Software Foundation; either version 2, or (at your option)
9
any later version.
10
 
11
GNU Classpath is distributed in the hope that it will be useful, but
12
WITHOUT ANY WARRANTY; without even the implied warranty of
13
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
General Public License for more details.
15
 
16
You should have received a copy of the GNU General Public License
17
along with GNU Classpath; see the file COPYING.  If not, write to the
18
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19
02110-1301 USA.
20
 
21
Linking this library statically or dynamically with other modules is
22
making a combined work based on this library.  Thus, the terms and
23
conditions of the GNU General Public License cover the whole
24
combination.
25
 
26
As a special exception, the copyright holders of this library give you
27
permission to link this library with independent modules to produce an
28
executable, regardless of the license terms of these independent
29
modules, and to copy and distribute the resulting executable under
30
terms of your choice, provided that you also meet, for each linked
31
independent module, the terms and conditions of the license of that
32
module.  An independent module is a module which is not derived from
33
or based on this library.  If you modify this library, you may extend
34
this exception to your version of the library, but you are not
35
obligated to do so.  If you do not wish to do so, delete this
36
exception statement from your version. */
37
 
38
 
39
package java.util;
40
 
41
/**
42
 * An object which iterates over a collection. An Iterator is used to return
43
 * the items once only, in sequence, by successive calls to the next method.
44
 * It is also possible to remove elements from the underlying collection by
45
 * using the optional remove method. Iterator is intended as a replacement
46
 * for the Enumeration interface of previous versions of Java, which did not
47
 * have the remove method and had less conveniently named methods.
48
 *
49
 * @author Original author unknown
50
 * @author Eric Blake (ebb9@email.byu.edu)
51
 * @see Collection
52
 * @see ListIterator
53
 * @see Enumeration
54
 * @since 1.2
55
 * @status updated to 1.4
56
 */
57
public interface Iterator<E>
58
{
59
  /**
60
   * Tests whether there are elements remaining in the collection. In other
61
   * words, calling <code>next()</code> will not throw an exception.
62
   *
63
   * @return true if there is at least one more element in the collection
64
   */
65
  boolean hasNext();
66
 
67
  /**
68
   * Obtain the next element in the collection.
69
   *
70
   * @return the next element in the collection
71
   * @throws NoSuchElementException if there are no more elements
72
   */
73
  E next();
74
 
75
  /**
76
   * Remove from the underlying collection the last element returned by next
77
   * (optional operation). This method can be called only once after each
78
   * call to <code>next()</code>. It does not affect what will be returned
79
   * by subsequent calls to next.
80
   *
81
   * @throws IllegalStateException if next has not yet been called or remove
82
   *         has already been called since the last call to next.
83
   * @throws UnsupportedOperationException if this Iterator does not support
84
   *         the remove operation.
85
   */
86
  void remove();
87
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.