Is there any unique per pc code(static) that Java can retrieve??

Question

Hi
I need to find a unique code (eg maybe cpu or motherboard serial??) on pc via Java.
HDD serials are only unique per batch of them coming out of the factory.
If anyone has some idea as to how this might be achieved, that would be awesome!
But, if Im clueless in my optimism I also need to know, I can humbly accept that ;-)
Thanks either way!

Answer 1

I need to find a unique code (eg maybe cpu or motherboard serial??) on pc via Java.
Does the unique code you are seeking need to be bound to the available hardware on the machine or just so long as it is unique?
Assuming that the need is simply to be unique, maybe this will help give you a start:
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.rmi.server.UID;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
        try
            UID                   id          = new UID();
            String                ip          = InetAddress.getLocalHost().getHostAddress();
            long                  now         = System.currentTimeMillis();
            long                  totalMemory = Runtime.getRuntime().totalMemory();
            long                  freeMemory  = Runtime.getRuntime().freeMemory();
            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            ObjectOutputStream    out   = new ObjectOutputStream(bytes);
            out.writeBytes(id.toString());
            out.writeBytes(ip);
            out.writeLong(now);
            out.writeLong(totalMemory);
            out.writeLong(freeMemory);
            out.flush();
            out.close();
            randomizer = SecureRandom.getInstance("SHA1PRNG");
            randomizer.setSeed(bytes.toByteArray());
        catch (UnknownHostException e)
        catch (IOException e)
        catch (NoSuchAlgorithmException e)
        }I am not sure just how unique of a code this would actually generate however...