To get Motherboard serial number, Hard disk serial number, IP Address and MAC Address from Java

import java.io.File;
import java.io.FileWriter;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.NetworkInterface;

public class MyPC {

    public static String getMotherBoardSerialNumber() {
        String result = "";
        try {
            File file = File.createTempFile("realhowto", ".vbs");
            file.deleteOnExit();
            FileWriter fw = new java.io.FileWriter(file);
            String vbs =
                    "Set objWMIService = GetObject(\"winmgmts:\\\\.\\root\\cimv2\")\n"
                    + "Set colItems = objWMIService.ExecQuery _ \n"
                    + "   (\"Select * from Win32_BaseBoard\") \n"
                    + "For Each objItem in colItems \n"
                    + "    Wscript.Echo objItem.SerialNumber \n"
                    + "    exit for  ' do the first cpu only! \n"
                    + "Next \n";

            fw.write(vbs);
            fw.close();
            Process p = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
            BufferedReader input =
                    new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line;
            while ((line = input.readLine()) != null) {
                result += line;
            }
            input.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result.trim();
    }

    public static String getHardDiskSerialNumber(String drive) {
        String result = "";
        try {
            File file = File.createTempFile("realhowto", ".vbs");
            file.deleteOnExit();
            FileWriter fw = new java.io.FileWriter(file);

            String vbs = "Set objFSO = CreateObject(\"Scripting.FileSystemObject\")\n"
                    + "Set colDrives = objFSO.Drives\n"
                    + "Set objDrive = colDrives.item(\"" + drive + "\")\n"
                    + "Wscript.Echo objDrive.SerialNumber";  // see note
            fw.write(vbs);
            fw.close();
            Process p = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
            BufferedReader input =
                    new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line;
            while ((line = input.readLine()) != null) {
                result += line;
            }
            input.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result.trim();
    }

    public static String getIPAddress() {
        String strIP = "127.0.0.1";
        try {
            InetAddress ip = InetAddress.getLocalHost();
            strIP = ip.getHostAddress();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strIP;
    }

    public static String getMACAddress() {
        String strMAC = "127.0.0.1";
        try {
            InetAddress ip = InetAddress.getLocalHost();
            NetworkInterface network = NetworkInterface.getByInetAddress(ip);
            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) ? "-" : ""));
            }
            strMAC = sb.toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strMAC;
    }

    public static void main(String[] args) {
        System.out.println("Motherboard serial number : " + MyPC.getMotherBoardSerialNumber());
        System.out.println("Hard disk serial number : " + MyPC.getHardDiskSerialNumber("C"));
        System.out.println("IP Address : " + MyPC.getIPAddress());
        System.out.println("MAC Address : " + MyPC.getMACAddress());
    }
}