Java APIs

Dear Experts,
my Coding

       URL u = new URL("http://www.google.com");
/*            URL u = new URL(url1);  */
            InputStream in = u.openStream();
           in = new BufferedInputStream(in);
          Reader r = new InputStreamReader(in);
          int c;
         
while ((c =r.read())!=-1)
{
System.out.print((char)c);
}

I get an error as java.net.UnknownHostException: www.google.com
Please Suggest an solution...
Advance Thanks,
Rengaraj.R