Android Byte Array to Hex Convert bytesToHex(byte[] data)

Description

Convenience method to convert a byte array to a hex string.

License

Open Source License

Parameter

Parameter	Description
data	the byte[] to convert

Return

String the converted byte[]

Declaration

public static String bytesToHex(byte[] data) 

Method Source Code

//package com.java2s;
/*//from www. ja  v  a  2s  .  c  om
 * Copyright 2013 Simon Thiel
 *
 * This file is part of SitJar.
 *
 * SitJar is free software: you can redistribute it and/or modify
 * it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * SitJar is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with SitJar. If not, see <http://www.gnu.org/licenses/lgpl.txt>.
 */

public class Main {
    /**
     * Convenience method to convert a byte array to a hex string.
     *
     * @param data the byte[] to convert
     * @return String the converted byte[]
     */
    public static String bytesToHex(byte[] data) {
        StringBuilder buf = new StringBuilder();
        for (int i = 0; i < data.length; i++) {
            buf.append(byteToHex(data[i]).toUpperCase());
        }
        return (buf.toString());
    }

    /**
     * method to convert a byte to a hex string.
     *
     * @param data the byte to convert
     * @return String the converted byte
     */
    public static String byteToHex(byte data) {
        StringBuilder buf = new StringBuilder();
        buf.append(toHexChar((data >>> 4) & 0x0F));
        buf.append(toHexChar(data & 0x0F));
        return buf.toString();
    }

    /**
     * Convenience method to convert an int to a hex char.
     *
     * @param i the int to convert
     * @return char the converted char
     */
    public static char toHexChar(int i) {
        if ((0 <= i) && (i <= 9)) {
            return (char) ('0' + i);
        } else {
            return (char) ('a' + (i - 10));
        }
    }
}

Related

1. convertToHex(byte[] raw)
2. bytes2Hex(byte[] bts)
3. bytes2HexString(byte[] bytes)
4. bytes2hex(byte[] bytes)
5. bytesToHex(byte[] bytes)
6. bytesToHex(byte[] data)
7. bytesToHex(byte[] data, int offset, int length)
8. bytesToHexString(byte[] bytes)
9. bytesToHexString(byte[] bytes)