Question

Im facing a problem in quiz app…

My problem is..

I got the Questionid, questions and answers through JSON. And i stored in hashmap with single key. Now What i want to do is…

How can i get the question and answers from hashmap based upon questionid..to display the question in textview and answers in radiobuttons…

How can i implement this? Any help would be appreciated…Thanks a lot in advance..

  protected void onPostExecute(String file_url) {
   pDialog.dismiss();   
       List<NameValuePair> params = new ArrayList<NameValuePair>();
    params.add(new BasicNameValuePair("tid", tid));
    JSONObject json = jsonParser.makeHttpRequest(url_get_quesid, "GET", params);
    json = jsonParser.makeHttpRequest(url_get_quesurl, "GET", params);
      try {
    int success = json.getInt(TAG_SUCCESS);
    if (success == 1) {
    System.out.println("Success");
    groups = json.getJSONArray(TAG_GROUP);
    System.out.println("Result Success+++"+groups);
    for (int i = 0; i < groups.length();i++) {
    JSONObject c = groups.getJSONObject(i);
    String questionid = c.getString(TAG_QUESID);
    String question = c.getString(TAG_QUES);
    String answer = c.getString(TAG_ANSW);
    System.out.println("Checking ::"+questionid);
    id=questionid;         
    quesid.add(questionid);
    HashMap<String, String> map = new HashMap<String, String>();
    map.put(questionid,  question + ";" + answer);                  
    System.out.println("QuestionIDMap:"+map);
        }
    } else {
    showAlert();
}
    } catch (JSONException e) {
    System.out.println("Error "+e.toString());
    }       
}

Answer 1

First of all you want to use your questionid as the map key.

Once you’ve got that ,you can simply do something simular to;

String total = map.get(questionid);
String[] split = total.split(“;”);

String question = split[0];
String answer = split[1];

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In total i’d rather recommend using a database though, then saving everything in collections.