String hostIp =

inet address net address = getine address()；

hostIp = getHostIp(net address)；

Return to hostIp

}

public static inet address getinet address(){

Try {

Returns inetaddress. getlocalhost ();

} catch (UnknownHostException e) {

System.out.println ("Unknown host!" );

}

Returns null

}

Public static string gethostip (inetaddress netaddress) (

if (null == netAddress) {

Returns null

}

string IP = net address . gethostaddress()； //get the ip address

Return to IP;

}

Public static string gethostname (inetaddress netaddress) (

if (null == netAddress) {

Returns null

}

string name = net address . get hostname()； //Get the host address

Returns the name;

}