Java Hex Calculate toHexString(byte[] bytes)

Description

Returns a hex string representation of the given byte array.

License

Apache License

Parameter

Parameter	Description
bytes	the byte array to convert to hex representation

Return

String

Declaration

public static String toHexString(byte[] bytes) 

Method Source Code

//package com.java2s;
/**//from   ww  w  . ja  va  2 s  .  c o  m
 * Copyright (C) 2015 OpenTravel Alliance (info@opentravel.org)
 *
 * 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 {
    private static final char[] hex = "0123456789abcdef".toCharArray();

    /**
     * Returns a hex string representation of the given byte array.
     * 
     * @param bytes  the byte array to convert to hex representation
     * @return String
     */
    public static String toHexString(byte[] bytes) {
        if (null == bytes) {
            return null;
        }

        StringBuilder sb = new StringBuilder(bytes.length << 1);

        for (int i = 0; i < bytes.length; ++i) {
            sb.append(hex[(bytes[i] & 0xf0) >> 4]).append(hex[(bytes[i] & 0x0f)]);
        }

        return sb.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)