public final class DaytimeUDPClient extends DatagramSocketClient
open
and call getTime to retrieve the daytime
string, then
call close
to close the connection properly. Unlike
DaytimeTCPClient,
successive calls to getTime are permitted
without re-establishing a connection. That is because UDP is a
connectionless protocol and the Daytime protocol is stateless.DaytimeTCPClient| Modifier and Type | Field and Description |
|---|---|
static int |
DEFAULT_PORT
The default daytime port.
|
_isOpen_, _socket_, _socketFactory_, _timeout_| Constructor and Description |
|---|
DaytimeUDPClient() |
| Modifier and Type | Method and Description |
|---|---|
String |
getTime(InetAddress host)
Same as
getTime(host, DaytimeUDPClient.DEFAULT_PORT); |
String |
getTime(InetAddress host,
int port)
Retrieves the time string from the specified server and port and
returns it.
|
close, getCharset, getCharsetName, getDefaultTimeout, getLocalAddress, getLocalPort, getSoTimeout, isOpen, open, open, open, setCharset, setDatagramSocketFactory, setDefaultTimeout, setSoTimeoutpublic static final int DEFAULT_PORT
public String getTime(InetAddress host, int port) throws IOException
host - The address of the server.port - The port of the service.IOException - If an error occurs while retrieving the time.public String getTime(InetAddress host) throws IOException
getTime(host, DaytimeUDPClient.DEFAULT_PORT);host - the hostIOException - on errorCopyright © 2001–2015. All rights reserved.