Java Byte Array to Hex bytesToHex(byte[] bytes)

Description

bytes To Hex

License

Apache License

Declaration

public static String bytesToHex(byte[] bytes) 

Method Source Code

//package com.java2s;
/*//  www  . j a va  2  s .  com
 * Copyright (C) 2015 S.Violet
 *
 * 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.
 *
 * Project GitHub: https://github.com/shepherdviolet/turquoise
 * Email: shepherdviolet@163.com
 */

public class Main {

    public static String bytesToHex(byte[] bytes) {
        return bytesToHex(bytes, false);
    }

    public static String bytesToHex(byte[] bytes, boolean upperCase) {
        if (bytes == null) {
            return null;
        }
        if (bytes.length <= 0) {
            return "";
        }
        StringBuilder stringBuilder = new StringBuilder("");
        for (byte unit : bytes) {
            int unitInt = unit & 0xFF;
            String unitHex = Integer.toHexString(unitInt);
            if (unitHex.length() < 2) {
                stringBuilder.append(0);
            }
            stringBuilder.append(unitHex);
        }
        if (upperCase)
            return stringBuilder.toString().toUpperCase();
        else
            return stringBuilder.toString();
    }
}

Related

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