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1 /*
2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package java.nio.charset;
26 
27 /**
28  * Constant definitions for the standard {@link Charset Charsets}. These
29  * charsets are guaranteed to be available on every implementation of the Java
30  * platform.
31  *
32  * @see <a href="Charset.html#standard">Standard Charsets</a>
33  * @since 1.7
34  */
35 public final class StandardCharsets {
36 
37     // To avoid accidental eager initialization of often unused Charsets
38     // from happening while the VM is booting up, which may delay
39     // initialization of VM components, we should generally avoid depending
40     // on this class from elsewhere in java.base.
41 
StandardCharsets()42     private StandardCharsets() {
43         throw new AssertionError("No java.nio.charset.StandardCharsets instances for you!");
44     }
45 
46     /**
47      * Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the
48      * Unicode character set
49      */
50     // Android-changed: libcore uses ICU4C for charset encoding / decoding.
51     // public static final Charset US_ASCII = sun.nio.cs.US_ASCII.INSTANCE;
52     public static final Charset US_ASCII = Charset.forName("US-ASCII");
53     /**
54      * ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1
55      */
56     // Android-changed: libcore uses ICU4C for charset encoding / decoding.
57     // public static final Charset ISO_8859_1 = sun.nio.cs.ISO_8859_1.INSTANCE;
58     public static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");
59     /**
60      * Eight-bit UCS Transformation Format
61      */
62     // public static final Charset UTF_8 = sun.nio.cs.UTF_8.INSTANCE;
63     public static final Charset UTF_8 = Charset.forName("UTF-8");
64     /**
65      * Sixteen-bit UCS Transformation Format, big-endian byte order
66      */
67     // public static final Charset UTF_16BE = new sun.nio.cs.UTF_16BE();
68     public static final Charset UTF_16BE = Charset.forName("UTF-16BE");
69     /**
70      * Sixteen-bit UCS Transformation Format, little-endian byte order
71      */
72     // public static final Charset UTF_16LE = new sun.nio.cs.UTF_16LE();
73     public static final Charset UTF_16LE = Charset.forName("UTF-16LE");
74     /**
75      * Sixteen-bit UCS Transformation Format, byte order identified by an
76      * optional byte-order mark
77      */
78     // public static final Charset UTF_16 = new sun.nio.cs.UTF_16();
79     public static final Charset UTF_16 = Charset.forName("UTF-16");
80 }
81