Java Byte Array to String by Charset toBytes(CharSequence str, String charsetName)

Description

Encodes the given string into a sequence of bytes using the named charset.

License

Apache License

Parameter

Parameter	Description
str	the string to encode into bytes
charsetName	the name of a supported java.nio.charset.Charset charset

Return

the encoded bytes

Declaration

public static byte[] toBytes(CharSequence str, String charsetName) 

Method Source Code

//package com.java2s;
/*//w  ww. j  a  v  a  2  s .com
 * Copyright 2011 Google Inc.
 * Copyright 2014 Andreas Schildbach
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.UnsupportedEncodingException;

public class Main {
    /**
     * Encodes the given string into a sequence of bytes using the named charset.
     * <p>
     * This is a convenience method which wraps the checked exception with a RuntimeException.
     * The exception can never occur given the charsets
     * US-ASCII, ISO-8859-1, UTF-8, UTF-16, UTF-16LE or UTF-16BE.
     *
     * @param str the string to encode into bytes
     * @param charsetName the name of a supported {@linkplain java.nio.charset.Charset charset}
     * @return the encoded bytes
     */
    public static byte[] toBytes(CharSequence str, String charsetName) {
        try {
            return str.toString().getBytes(charsetName);
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * Constructs a new String by decoding the given bytes using the specified charset.
     * <p>
     * This is a convenience method which wraps the checked exception with a RuntimeException.
     * The exception can never occur given the charsets
     * US-ASCII, ISO-8859-1, UTF-8, UTF-16, UTF-16LE or UTF-16BE.
     *
     * @param bytes the bytes to be decoded into characters
     * @param charsetName the name of a supported {@linkplain java.nio.charset.Charset charset}
     * @return the decoded String
     */
    public static String toString(byte[] bytes, String charsetName) {
        try {
            return new String(bytes, charsetName);
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. newString(final byte[] bytes, final Charset charset)
2. newStringFromSplit(CharsetDecoder decoder, CharsetDecoder utf8Decoder, String encoding, byte[] fieldBytes, int length)
3. parseBytes(byte[] encoded, Charset charset)
4. str(byte[] bytes, String charset)
5. stringToByteArray(String str, Charset charsetForEncoding, int lenOfByteArray, byte filler)
6. toBytes(String string, Charset charset)
7. toChars(byte[] b, String charset)
8. toCharSet(byte[] bytes, String fromCharsetName, String toCharsetName)
9. toDebugString(final byte[] bytes, final int len, final Charset charset)