URL url = new URL("http://rest.sendmode.com/v2/credits?access_key=YOUR_ACCESS_KEY");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");

BufferedReader in = new BufferedReader(
  new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer content = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
    content.append(inputLine);
}
in.close();
con.disconnect();