Android Hex String to Byte Array Convert hexStringToBytes(String s)

Description

hex String To Bytes

Declaration

public static byte[] hexStringToBytes(String s) 

Method Source Code

//package com.java2s;

public class Main {
    public static byte[] hexStringToBytes(String s) {
        if (s == null || s.length() == 0)
            return null;
        int len = s.length();
        if (len % 2 != 0) {
            s = '0' + s;
            len++;//w w  w. ja v  a  2s.  c  o  m
        }
        byte[] data = new byte[len / 2];
        for (int i = 0; i < len; i += 2) {
            data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character
                    .digit(s.charAt(i + 1), 16));
        }
        return data;
    }
}

Related

1. hexStr2ByteArr(String str)
2. hexStr2Bytes(String src)
3. hexStr2Str(String hexStr)
4. toByte(String hexString)
5. toBytesFromHexString(String digits)
6. hexStringToBytes(String s)
7. decodeHex(String str)
8. fromHex(String hex)
9. hexStringToByteArray(String s)