Java Byte Array Create toByteArray(String bytesStr, int byteLength)

Description

to Byte Array

License

Apache License

Declaration

static byte[] toByteArray(String bytesStr, int byteLength) 

Method Source Code

//package com.java2s;
/*/*from  www .ja v  a 2 s  .  c  o  m*/
 * Copyright 2011 Android DEvelopers' cluB
 *
 * 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.
 */

public class Main {
    static byte[] toByteArray(String bytesStr, int byteLength) {
        if (bytesStr == null) {
            return new byte[byteLength];
        }
        if (bytesStr.length() != (byteLength * 2)) {
            return null;
        }
        final byte[] result = new byte[byteLength];
        for (int index = 0; index < byteLength; index++) {
            final int offset = index * 2;
            final int value = Integer.parseInt(bytesStr.substring(offset, offset + 2), 16);
            result[index] = (byte) value;
        }
        return result;
    }
}

Related

1. toByteArray(Object obj)
2. toByteArray(Object value)
3. toByteArray(short foo)
4. toByteArray(String address)
5. toByteArray(String binString)
6. toByteArray(String content, String charsetName)
7. toByteArray(String hex)
8. toByteArray(String hex)
9. toByteArray(String hex)