public static String AUTENTICATE_URL = "http://149.202.178.231/authenticate";
	public static String USERNAME = "-_-_-_-_-_-_";
	public static String PASSWORD = "-_-_-_-_-_-_";

	public static void main(String args[]) throws JSONException, MalformedURLException, IOException{

		URL url = new URL(AUTENTICATE_URL);

		HttpURLConnection con = (HttpURLConnection) url.openConnection();
		con.setDoOutput(true);
		con.setDoInput(true);
		con.setRequestProperty("Content-Type", "application/json");
		con.setRequestProperty("Accept", "application/json");
		con.setRequestMethod("POST");

		JSONObject auth = new JSONObject();

		auth.put("username", USERNAME);
		auth.put("password", PASSWORD);

		OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
		wr.write(auth.toString());
		wr.close();

		StringBuilder sb = new StringBuilder();
		int HttpResult = con.getResponseCode();

		if (HttpResult == HttpURLConnection.HTTP_OK){

			BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8"));
		    String line = null;
		    while ((line = br.readLine()) != null)sb.append(line + "\n");
		    br.close();
		    System.out.println("" + sb.toString());
		} else {
		    System.out.println(con.getResponseMessage());
		}
	}