URL-ing sometimes not possible

Question

If I access the following URL
URL url = new URL( "http://www.google.de/search" );
BufferedReader in = new BufferedReader(
new InputStreamReader(url.openStream()));
... reading via in.readLine()
I get a FileNotFoundException. If I access
the same site via a browser (NS 7.2) or if I access
only "http://www.google.de" it works quite well.
Why doen't it work. What is the difference sending the URL with a browser, and what is the difference to the other URL?
Regards,
Wolfgang

Answer 1

Out of curiosity I tried the URL with the off-line browser "curl" and I this answer came:
<H1>Forbidden</h1>Your client does not have permission to get URL <code>/search</code> from this server.If I set the browser (agent) with the -A option:
curl -A "Mozilla/4.0"the German language search page came as accepted. Long may 'curl' live!
NAME
       curl - transfer a URL
SYNOPSIS
       curl [options] [URL...]
DESCRIPTION
curl is a client to get documents/files from or send documents to a server, using any of the supported protocols (HTTP, HTTPS, FTP, GOPHER, DICT, TELNET, LDAP or FILE).
The command is designed to work without user interaction or  any  kind of interactivity.