/**
* Closes the connection.
*
* @exception IOException if an I/O error occurs when closing the socket
*/
public void close() throws IOException {
if (socket == null) return;
socket.close();
socket = null;
in = null;
out = null;
}
protected void init() throws IOException {
if (address != null) socket = new Socket(address, port);
else socket = new Socket(host, port);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = socket.getOutputStream();
}