Java get MAC address of Computer

    /**
     * This method get the MAC address of a computer
     *
     * @return string of MAC address of computer
     */
    public static String getMacAddres() {
        String macAddress = "";
        try {
            for (Enumeration<NetworkInterface> enm = NetworkInterface.getNetworkInterfaces(); enm.hasMoreElements();) {
                NetworkInterface network1 = (NetworkInterface) enm.nextElement();
                if (null != network1.getHardwareAddress()) {
                    byte[] mac = new byte[50];

                    mac = network1.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) ? "-" : ""));
                    }

                    macAddress = sb.toString();
                }
            }
        } catch (SocketException e) {
            // e.printStackTrace();
        }

        return macAddress;
    }