🚀 go-pugleaf

i use JDK 1.4 in Windows 2000. And are these Object Identifiers useful to
programmers in the network programming? When yes, is there any exsamples?

regards

Zhilei Ma


"Joi Ellis [TeamB]" <joi@aravox.com> д����Ϣ����:3cf77014_2@dnews...
> Zhilei Ma <ma_zhilei@web.de> wrote:
> > Hi all,
>
> > i got a programm like this:
> > import java.io.*;
> > import java.net.*;
>
> > class Whois
> > {
> >  public static void main(String args[]) throws Exception
> >  {
> >   int c;
> >   Socket s = new Socket("internic.net", 43);
>
> >   InputStream in = s.getInputStream ();
> >   System.out.println (in);
>
> >   OutputStream out = s.getOutputStream ();
> >   System.out.println (out);
>
> >   String str = (args.length == 0 ? "osborne.com" : args[0]) + "\n";
> >   byte buf[] = str.getBytes ();
> >   out.write (buf);
>
> >   while((c = in.read()) != -1)
> >   {
> >    System.out.print ((char) c);
> >   }
> >   s.close ();
>
> >  }
> > }
>
> > but how can i unterstand the first two lines in the output:
> > java.net.SocketInputStream@19298d
> > java.net.SocketOutputStream@8a992f
> > what means the IDs "@19298d" and "@8a992f"?
>
> I think of those as heap addresses, object Identifiers, whatever.
> You asked the JVM to print the java.net.Socket* objects, so the JVM used
> whatever toString() method it could find, and probably ended up on the
generic
> method on java.lang.Object().
>
> What version of the JDK is the project using?  I can't find those classes
> in SDK 1.3.x or in 1.4.
>
>
> --
> Joi Ellis (TeamB)               http://www.teamb.com/
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