How to Fetch System UUID with Java Program?

We can get the System UUID by below code

public class DeviceInfo {
    
    //Get Windows Machine UUID
    public static String getWindowsDeviceUUID()
    {
        try{
             String command = "wmic csproduct get UUID";
                StringBuffer output = new StringBuffer();

                Process SerNumProcess = Runtime.getRuntime().exec(command);
                BufferedReader sNumReader = new BufferedReader(new InputStreamReader(SerNumProcess.getInputStream()));

                String line = "";
                while ((line = sNumReader.readLine()) != null) {
                    output.append(line + "\n");
                }
                String uuid=output.toString().substring(output.indexOf("\n"), output.length()).trim();;
                System.out.println(uuid);
                return uuid;
        }catch(Exception ex)
        {
            System.out.println("OutPut Error "+ex.getMessage());
        }
        return null;
    }
    
    //Get Mac Machine UUID
    public static String getMacUUID()
    {
        try{
             String command = "system_profiler SPHardwareDataType | awk '/UUID/ { print $3; }'";

            StringBuffer output = new StringBuffer();


            Process SerNumProcess = Runtime.getRuntime().exec(command);

            BufferedReader sNumReader = new BufferedReader(new InputStreamReader(SerNumProcess.getInputStream()));

            String line = "";

            while ((line = sNumReader.readLine()) != null) {
                output.append(line + "\n");
            }

            String uuid=output.toString().substring(output.indexOf("UUID: "), output.length()).replace("UUID: ", "");

            SerNumProcess.waitFor();

            sNumReader.close();

            System.out.println(uuid);
            return uuid;
        }catch(Exception ex)
        {
            
        }
         
     
            return null;
    }
}

 


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