class DemoServer {

    public String getURL() {
        //return "http://" + httpServer.getAddress().getHostString() + ":" + httpServer.getAddress().getPort();
        return "http://" + "localhost" + ":" + httpServer.getAddress().getPort();
    }

    public  DemoServer(InetSocketAddress inetSocketAddress);
    public  DemoServer(int port);

}