Java Utililty Methods Mac Address Get

String ip = getIPAddress();
String mac = "none";
String os = getOS();
String s = "";
if (os.equalsIgnoreCase("Windows NT") || os.equalsIgnoreCase("Windows 2000")
        || os.equalsIgnoreCase("Windows XP") || os.equalsIgnoreCase("Windows 95")
        || os.equalsIgnoreCase("Windows 98") || os.equalsIgnoreCase("Windows Me")
        || os.startsWith("Windows")) {
...

Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
int count = 0;
while (networkInterfaces.hasMoreElements()) {
    NetworkInterface networkInterface = networkInterfaces.nextElement();
    count++;
    byte[] bmac = networkInterface.getHardwareAddress();
    if (bmac != null) {
        String mac = macBytesToString(bmac);
...

String macAddress = null;
try {
    InetAddress ip = InetAddress.getLocalHost();
    NetworkInterface network = NetworkInterface.getByInetAddress(ip);
    if (network == null) {
        macAddress = "00";
        return macAddress;
    byte[] mac = network.getHardwareAddress();
    if (mac == null) {
        macAddress = "00";
        return macAddress;
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < mac.length; i++) {
        sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
    macAddress = sb.toString();
    return macAddress;
} catch (Exception e) {
    macAddress = "00";
    return macAddress;

String mac = "";
String os = System.getProperty("os.name");
try {
    if (os.startsWith("Windows")) {
        mac = windowsParseMacAddress(windowsRunIpConfigCommand());
    } else if (os.startsWith("Linux")) {
        mac = linuxParseMacAddress(linuxRunIfConfigCommand());
    } else if (os.startsWith("Mac OS X")) {
...

try {
    final InetAddress addr = getLocalHost();
    final NetworkInterface ni = NetworkInterface.getByInetAddress(addr);
    final byte[] mac = ni.getHardwareAddress();
    return ((long) mac[5] & 0xff) + (((long) mac[4] & 0xff) << 8) + (((long) mac[3] & 0xff) << 16)
            + (((long) mac[2] & 0xff) << 24) + (((long) mac[1] & 0xff) << 32)
            + (((long) mac[0] & 0xff) << 40);
} catch (Throwable e) {
...

NetworkInterface network = NetworkInterface.getByInetAddress(getLocalAddress());
byte[] mac = network.getHardwareAddress();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < mac.length; i++) {
    sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
return sb.toString();

String mac = "";
StringBuffer sb = new StringBuffer();
try {
    NetworkInterface ni = NetworkInterface.getByInetAddress(InetAddress.getByName(host));
} catch (SocketException e) {
    e.printStackTrace();
} catch (UnknownHostException e) {
    e.printStackTrace();
...

try {
    List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
    for (NetworkInterface intf : interfaces) {
        if (interfaceName != null) {
            if (!intf.getName().equalsIgnoreCase(interfaceName))
                continue;
        byte[] mac = intf.getHardwareAddress();
...

final StringBuilder macAddress = new StringBuilder();
final InetAddress localHost = InetAddress.getLocalHost();
final NetworkInterface networkInterface = NetworkInterface.getByInetAddress(localHost);
if (networkInterface == null) {
    return null;
for (byte b : networkInterface.getHardwareAddress()) {
    macAddress.append(String.format("%02X", b)).append(separator);
...

final NetworkInterface ni = NetworkInterface.getByInetAddress(InetAddress.getLocalHost());
return ni.getHardwareAddress();