Java Hex Calculate toHexString(byte[] bytes)

Description

Creates a hexadecimal representation of the specified bytes.

License

Apache License

Parameter

Parameter	Description
bytes	The bytes to represent in hex notation, may be be null .

Return

The hexadecimal representation of the input or null if the input was null .

Declaration

public static String toHexString(byte[] bytes) 

Method Source Code

//package com.java2s;
/*/*from ww  w. j a  va2 s  .c  om*/
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 {
    /**
     * Creates a hexadecimal representation of the specified bytes. Each byte is converted into a two-digit hex number
     * and appended to the result with no separator between consecutive bytes.
     * 
     * @param bytes The bytes to represent in hex notation, may be be {@code null}.
     * @return The hexadecimal representation of the input or {@code null} if the input was {@code null}.
     */
    public static String toHexString(byte[] bytes) {
        if (bytes == null) {
            return null;
        }

        StringBuilder buffer = new StringBuilder(bytes.length * 2);

        for (byte aByte : bytes) {
            int b = aByte & 0xFF;
            if (b < 0x10) {
                buffer.append('0');
            }
            buffer.append(Integer.toHexString(b));
        }

        return buffer.toString();
    }
}

Related

1. toHexString(byte[] bytes)
2. toHexString(byte[] bytes)
3. toHexString(byte[] bytes)
4. toHexString(byte[] bytes)
5. toHexString(byte[] bytes)
6. toHexString(byte[] bytes)
7. toHexString(byte[] bytes)
8. toHexString(byte[] bytes)
9. toHexString(byte[] bytes)