String final_url = "http://localhost/makeup/index.php";

    public Grade() {
        // Empty constructor
        System.out.println("INITIALIZED");
    }

    public String getGrade( int stumark, int stunumber ) {
        String result = "";

        try {
            URL url = new URL(final_url);
            HttpURLConnection con = (HttpURLConnection) url.openConnection();
            con.setRequestMethod("POST");
            String urlparams = "stumark=" + Integer.toString(stumark) + "&stunumber=" + Integer.toString(stunumber);
            con.setDoOutput(true);


            DataOutputStream wr = new DataOutputStream(con.getOutputStream());
            wr.writeBytes(urlparams);
            wr.flush();
            wr.close();

            int responceCode = con.getResponseCode();
            System.out.println("Sending POST request to : " + final_url );
            BufferedReader in = new BufferedReader( new InputStreamReader(con.getInputStream()) );
            String inputLine;
            StringBuffer response = new StringBuffer();
            while( (inputLine = in.readLine() ) != null ) {
                response.append( inputLine );
            }
            in.close();

            System.out.println("Result : " + response );
            result = response.toString();
        }catch( Exception e ) {
            System.out.println(e.getMessage());
        }

        return result;
    }