getMac

	public static String getLocalMAC() {
		InetAddress address;
		String sMAC = null;
		try {
			address = InetAddress.getLocalHost();
			NetworkInterface ni = NetworkInterface.getByInetAddress(address);
			byte[] mac = ni.getHardwareAddress();
			Formatter formatter = new Formatter();
			for (int i = 0; i < mac.length; i++) {
				sMAC = formatter.format(Locale.getDefault(), "%02X%s", mac[i],
						(i < mac.length - 1) ? "-" : "").toString();
			}
		} catch (UnknownHostException e) {
			e.printStackTrace();
		} catch (SocketException e) {
			e.printStackTrace();
		}
		return sMAC;
	}