Java Utililty Methods Byte Convert From

List of utility methods to do Byte Convert From

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Description

The list of methods to do Byte Convert From are organized into topic(s).

Method

byteasByte(Byte number)
as Byte 
if (number != null) {
    return number;
return 0;
ByteasByte(final Object o)
as Byte 
if (o instanceof Number) {
    return ((Number) o).byteValue();
return null;
ByteasByte(Object o)
Converts the given object to a Byte 
if (o instanceof Number) {
    return ((Number) o).byteValue();
return null;
byte[]booleanAsByte(boolean val)
boolean As Byte 
return new byte[] { val ? (byte) 1 : (byte) 0 };
byte[]bytesFrom(String hwAddress)
bytes From 
String[] mac = hwAddress.split(":");
byte[] macAddress = new byte[6]; 
for (int i = 0; i < mac.length; i++) {
    macAddress[i] = Integer.decode("0x" + mac[i]).byteValue();
return macAddress;
byte[]bytesFromDpid(long dpid)
bytes From Dpid 
byte[] mac = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
for (short i = 0; i < 6; i++) {
    mac[5 - i] = (byte) dpid;
    dpid >>= 8;
return mac;
byte[]bytesFromHex(String s)
bytes From Hex 
String clean = s.replaceAll("[^0-9a-f]", "");
if (clean.length() % 2 != 0)
    throw new RuntimeException("Not a hex string: " + s);
byte data[] = new byte[clean.length() / 2];
for (int i = 0; i < clean.length(); i += 2) {
    data[i / 2] = (Integer.decode("0x" + clean.charAt(i) + clean.charAt(i + 1))).byteValue();
return data;
...
byte[]bytesFromHexString(String values)
bytes From Hex String 
String target = "";
if (values != null) {
    target = values;
String[] octets = target.split(":");
byte[] ret = new byte[octets.length];
for (int i = 0; i < octets.length; i++) {
    ret[i] = Integer.valueOf(octets[i], 16).byteValue();
...
byte[]bytesFromLong(long l)
bytes From Long 
byte[] ret = new byte[8];
for (int i = 0; i < 8; i++) {
    ret[i] = (byte) l;
    l >>>= 8;
return (ret);
byte[]bytesFromString(String bytes)
bytes From String 
String[] bs = bytes.split(" ");
byte[] result = new byte[bs.length];
for (int i = 0; i < bs.length; i++) {
    int b = Integer.parseInt(bs[i], 16);
    result[i] = (byte) b;
return result;