title: json-parsing errors at run time
body: <p>I am trying to send some sign up information to a php server from my <em>Android</em> app. </p>
  
  <p>I have two classes: <strong><em>RegisterActivity</em></strong> and <strong><em>JSONParser</em></strong>. 
  While I'm trying to run this programs there is some errors like this:</p>
  
  <p><code>Error parsing data org.json.JSONException: Value not of type java.lang.String cannot be converted to JSONObject" and "android.os.AsyncTask$3.done(AsyncTask.java:299)</code></p>
  
  <p>Here is my code: </p>
  
  <p><em><strong>RegisterActivity.java</em></strong></p>
  
  <pre><code>public class RegisterActivity extends Activity {
  
      private ProgressDialog pDialog;
  
      JSONParser jsonParser = new JSONParser();
      EditText username;
      EditText email;
      EditText password;
      EditText RePass;
  
      private static String url_create_product = "http://oranz.co/pmdtest/index.php";
  
              private static final String TAG_SUCCESS = "sucess";
              @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          // Set View to register.xml
          setContentView(R.layout.register);
          Button registerscreen=(Button)findViewById(R.id.btnCntnueRegister);
          // Listening to Login Screen link
  
          email = (EditText)findViewById(R.id.reg_email);
          password =(EditText)findViewById(R.id.reg_password);
          username =(EditText)findViewById(R.id.reg_username);
          RePass = (EditText)findViewById(R.id.rereg_password);
          EditText passwords=(EditText)findViewById(R.id.reg_password);
          passwords.setTransformationMethod(new PasswordTransformationMethod());
          EditText repasswords = (EditText) findViewById(R.id.rereg_password);
          repasswords.setTransformationMethod(new PasswordTransformationMethod());
  
  
  
          registerscreen.setOnClickListener(new View.OnClickListener(){
  
              public void onClick(View arg0) {
  
                  Context context = getApplicationContext();
                  int duration = Toast.LENGTH_SHORT;
                  if(email.getText().toString().equals("")&amp;&amp;password.getText().toString().equals("")&amp;&amp;username.getText().toString().equals("")&amp;&amp;RePass.getText().toString().equals(""))
                  {                                        
                      Toast toast = Toast.makeText(context, "Please Enter a valed data. !", duration);       
                      toast.show();
                  }
                  else if(email.getText().toString().equals("")||password.getText().toString().equals("")||username.getText().toString().equals("")||RePass.getText().toString().equals(""))
                  {
                      Toast toast = Toast.makeText(context, "Please check any field is blank. !", duration);       
                      toast.show();
                  }
                  else if(password.getText().toString().compareTo(RePass.getText().toString())==0)
                  {
                  Intent k = new Intent(getApplicationContext(), ContinueRegister.class);
                  startActivity(k);
  
                  new CreateNewUser().execute();
  
                  }
                  else
                  {
                      Toast toast = Toast.makeText(context, "Password matching is failed. !", duration);       
              toast.show();
  
  
                  }
              }
              });
        TextView loginScreen = (TextView) findViewById(R.id.link_to_login);
  
        loginScreen.setOnClickListener(new View.OnClickListener() {
  
          public void onClick(View v) {
              // TODO Auto-generated method stub
              Intent m = new Intent(getApplicationContext(),LoginActivity.class);
              startActivity(m);
  
          }
      });
      }
              class CreateNewUser extends AsyncTask&lt;String, String, String&gt; {
  
  @Override
  protected void onPreExecute() {
  super.onPreExecute();
  pDialog = new ProgressDialog(RegisterActivity.this);
  pDialog.setMessage("Creating Product..");
  pDialog.setIndeterminate(false);
  pDialog.setCancelable(true);
  pDialog.show();
  }
  
  protected String doInBackground(String... args) {
  String Username = username.getText().toString();
  String Email = email.getText().toString();
  String Password = password.getText().toString();
  
  List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;();
  params.add(new BasicNameValuePair("Username", Username));
  params.add(new BasicNameValuePair("Email", Email));
  params.add(new BasicNameValuePair("Password",Password));
  
  
  // getting JSON Object
  // Note that create product url accepts POST method
  
  JSONObject json = jsonParser.makeHttpRequest(url_create_product,
  "POST", params);
  
  // check log cat fro response
  Log.d("Create Response", json.toString());                  
  // check for success tag
  try {
  int success = json.getInt(TAG_SUCCESS);
  
  if (success == 1) {
  // successfully created user
  Intent i = new Intent(getApplicationContext(),FinishSignupActivity.class);
  startActivity(i);
  // closing this screen
  finish();
  } else {
  // failed to create user
  }
  } catch (JSONException e) {
  e.printStackTrace();
  }
  
  return null;
                      }
  
                  /**
                   * After completing background task Dismiss the progress dialog
                   * **/
                  protected void onPostExecute(String file_url) {
  // dismiss the dialog once done
  pDialog.dismiss();
                  }
              }
  }
  </code></pre>
  
  <p><em><strong>JSONParser.java</em></strong>:</p>
  
  <pre><code>public class JSONParser {
  
      static InputStream is = null;
      static JSONObject jObj = null;
      static String json = "";
  
      // constructor
      public JSONParser() {
  
      }
  
      // function get json from url
      // by making HTTP POST or GET method
      public JSONObject makeHttpRequest(String url, String method,
              List&lt;NameValuePair&gt; params) {
  
          // Making HTTP request
          try {
  
              // check for request method
              if(method == "POST"){
                  // request method is POST
                  // defaultHttpClient
                  DefaultHttpClient httpClient = new DefaultHttpClient();
                  HttpPost httpPost = new HttpPost(url);
                  httpPost.setEntity(new UrlEncodedFormEntity(params));
  
                  HttpResponse httpResponse = httpClient.execute(httpPost);
                  HttpEntity httpEntity = httpResponse.getEntity();
                  is = httpEntity.getContent();
  
              }else if(method == "GET"){
                  // request method is GET
                  DefaultHttpClient httpClient = new DefaultHttpClient();
                  String paramString = URLEncodedUtils.format(params, "utf-8");
                  url += "?" + paramString;
                  HttpGet httpGet = new HttpGet(url);
  
                  HttpResponse httpResponse = httpClient.execute(httpGet);
                  HttpEntity httpEntity = httpResponse.getEntity();
                  is = httpEntity.getContent();
              }           
  
  
          } catch (UnsupportedEncodingException e) {
              e.printStackTrace();
          } catch (ClientProtocolException e) {
              e.printStackTrace();
          } catch (IOException e) {
              e.printStackTrace();
          }
  
          try {
              BufferedReader reader = new BufferedReader(new InputStreamReader(
                      is, "iso-8859-1"), 8);
              StringBuilder sb = new StringBuilder();
              String line = null;
              while ((line = reader.readLine()) != null) {
                  sb.append(line + "\n");
              }
              is.close();
              json = sb.toString();
          } catch (Exception e) {
              Log.e("Buffer Error", "Error converting result " + e.toString());
          }
  
          // try parse the string to a JSON object
          try {
              jObj = new JSONObject(json);
          } catch (JSONException e) {
              Log.e("JSON Parser", "Error parsing data " + e.toString());
          }
  
          // return JSON String
          return jObj;
  
      }
  }
  </code></pre>