96 lines
4.3 KiB
Java
96 lines
4.3 KiB
Java
/*
|
|
* Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation. Oracle designates this
|
|
* particular file as subject to the "Classpath" exception as provided
|
|
* by Oracle in the LICENSE file that accompanied this code.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/**
|
|
* Defines charsets, decoders, and encoders, for translating between
|
|
* bytes and Unicode characters.
|
|
*
|
|
* <table class="striped" style="margin-left:2em; text-align:left">
|
|
* <caption style="display:none">Summary of charsets, decoders, and encoders in this package</caption>
|
|
* <thead>
|
|
* <tr><th scope="col">Class name</th>
|
|
* <th scope="col">Description
|
|
* </thead>
|
|
* <tbody>
|
|
* <tr><th scope="row">{@link java.nio.charset.Charset}</th>
|
|
* <td>A named mapping between characters and bytes</td></tr>
|
|
* <tr><th scope="row">{@link java.nio.charset.CharsetDecoder}</th>
|
|
* <td>Decodes bytes into characters</td></tr>
|
|
* <tr><th scope="row">{@link java.nio.charset.CharsetEncoder}</th>
|
|
* <td>Encodes characters into bytes</td></tr>
|
|
* <tr><th scope="row">{@link java.nio.charset.CoderResult}</th>
|
|
* <td>Describes coder results</td></tr>
|
|
* <tr><th scope="row">{@link java.nio.charset.CodingErrorAction}</th>
|
|
* <td>Describes actions to take when coding errors are detected</td></tr>
|
|
* </tbody>
|
|
* </table>
|
|
*
|
|
* <p> A <i>charset</i> is named mapping between sequences of
|
|
* sixteen-bit Unicode characters and sequences of bytes, in the sense
|
|
* defined in <a
|
|
* href="http://www.ietf.org/rfc/rfc2278.txt"><i>RFC 2278</i></a>.
|
|
* A <i>decoder</i> is an engine which transforms bytes in a specific
|
|
* charset into characters, and an <i>encoder</i> is an engine which
|
|
* transforms characters into bytes. Encoders and decoders operate on
|
|
* byte and character buffers. They are collectively referred to as
|
|
* <i>coders</i>.
|
|
*
|
|
* <p> The {@link java.nio.charset.Charset} class defines methods for
|
|
* creating coders for a given charset and for retrieving the various
|
|
* names associated with a charset. It also defines static methods
|
|
* for testing whether a particular charset is supported, for locating
|
|
* charset instances by name, and for constructing a map that contains
|
|
* every charset for which support is available in the current Java
|
|
* virtual machine.
|
|
*
|
|
* <p> Most users will not use these classes directly; instead they
|
|
* will use the existing charset-related constructors and methods in
|
|
* the {@link java.lang.String} class, together with the existing
|
|
* {@link java.io.InputStreamReader} and {@link
|
|
* java.io.OutputStreamWriter} classes, all of whose implementations
|
|
* have been reworked to make use of the charset facilities defined in
|
|
* this package. A small number of changes have been made to the
|
|
* {@link java.io.InputStreamReader} and {@link
|
|
* java.io.OutputStreamWriter} classes in order to allow explicit
|
|
* charset objects to be specified in the construction of instances of
|
|
* those classes.
|
|
*
|
|
* <p> Support for new charsets can be made available via the
|
|
* interface defined in the {@link
|
|
* java.nio.charset.spi.CharsetProvider} class in the {@link
|
|
* java.nio.charset.spi} package.
|
|
*
|
|
* <p> Unless otherwise noted, passing a {@code null} argument to a
|
|
* constructor or method in any class or interface in this package
|
|
* will cause a {@link java.lang.NullPointerException
|
|
* NullPointerException} to be thrown.
|
|
*
|
|
*
|
|
* @since 1.4
|
|
* @author Mark Reinhold
|
|
* @author JSR-51 Expert Group
|
|
*/
|
|
package java.nio.charset;
|