Java Utililty Methods Byte Array to Hex

List of utility methods to do Byte Array to Hex

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Description

The list of methods to do Byte Array to Hex are organized into topic(s).

Method

Stringbytes2Hex(byte[] byteArray)
bytes Hex 
StringBuffer strBuf = new StringBuffer();
for (int i = 0; i < byteArray.length; i++) {
    if (byteArray[i] >= 0 && byteArray[i] < 16) {
        strBuf.append("0");
    strBuf.append(Integer.toHexString(byteArray[i] & 0xFF));
return strBuf.toString();
...
Stringbytes2Hex(byte[] bytes)
bytes Hex 
StringBuilder stringBuilder = new StringBuilder("");
if (bytes == null || bytes.length <= 0) {
    return null;
for (int i = 0; i < bytes.length; i++) {
    int v = bytes[i] & 0xFF;
    String hv = Integer.toHexString(v);
    if (hv.length() < 2) {
...
Stringbytes2Hex(byte[] bytes)
bytes Hex 
if (bytes == null) {
    return null;
final StringBuilder hexBuilder = new StringBuilder(2 * bytes.length);
for (final byte b : bytes) {
    hexBuilder.append(HEX_CHARS[(b & 0xF0) >> 4]).append(HEX_CHARS[b & 0x0F]);
return hexBuilder.toString();
...
Stringbytes2Hex(byte[] bytes)
bytes Hex 
final StringBuilder result = new StringBuilder(2 * bytes.length);
for (final byte item : bytes) {
    result.append((char) HEX_ALPHABET[(item & 0xff) >> 4]).append((char) HEX_ALPHABET[item & 0xf]);
return result.toString();
Stringbytes2Hex(byte[] bytes)
bytes Hex 
StringBuffer ret = new StringBuffer(bytes.length * 2);
for (int i = 0; i < bytes.length; i++) {
    ret.append(byte2Hex(bytes[i]));
return ret.toString();
byte[]bytes2HexCharArr(byte[] bytes)
bytes Hex Char Arr 
if (bytes == null)
    return null;
byte[] sb = new byte[bytes.length * 2];
copy2Hex(bytes, sb, 0);
return sb;
Stringbytes2HexPP2(byte[] bytes)
bytes Hex PP 
char[] hexChars = new char[bytes.length * 3];
for (int j = 0; j < bytes.length; j++) {
    int v = bytes[j] & 0xFF;
    hexChars[j * 3] = ' ';
    hexChars[j * 3 + 1] = hexArray[v >>> 4];
    hexChars[j * 3 + 2] = hexArray[v & 0x0F];
return new String(hexChars).substring(1);
...
Stringbytes2HexSplit(byte[] in, int wordlength)
From Van Bui - prints out a hex string formatted with spaces between each hex word of length wordlength. 
String hex = bytes2Hex(in);
StringBuffer buff = new StringBuffer();
for (int i = 0; i < hex.length(); i++) {
    buff.append(hex.charAt(i));
    if ((i + 1) % wordlength == 0)
        buff.append(" ");
return buff.toString();
...
Stringbytes2HexStr(byte[] bytes)
bytes Hex Str 
return bytes2HexStr(bytes, false);
Stringbytes2HexStr(byte[] bytes)
bytes Hex Str 
if ((bytes == null) || (bytes.length == 0)) {
    return null;
char[] chars = new char[bytes.length * 2];
for (int i = 0; i < bytes.length; i++) {
    byte b = bytes[i];
    chars[(i * 2 + 1)] = DIGITS[(b & 0xF)];
    b = (byte) (b >>> 4);
...