spinner values not displaying in android

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Hi In This code first two values showing data and from third string array it giving null pointer Exception but data coming from database.can any one please help me.

This values only showing NullPointerException

patient_main_type_name[i] = JA.getJSONObject(i).getString("patient_main_type_name");
patient_type_name[i] = JA.getJSONObject(i).getString("patient_type_name");
religion_name[i] = JA.getJSONObject(i).getString("religion_name");
caste_name[i] = JA.getJSONObject(i).getString("caste_name");

class file

String result = DatabaseUtility.executeQueryPhp("getpatient","");
        System.out.print(result);

        try
        {
            JSONArray JA = new JSONArray(result);



            initial_name = new String[JA.length()];
            initial_id = new String[JA.length()];
            patient_main_type_name = new String[JA.length()];
            patient_type_name = new String[JA.length()];
            religion_name= new String[JA.length()];
            caste_name= new String[JA.length()];



            for(int i=0;i<JA.length();i++)
            {
               initial_name[i] = JA.getJSONObject(i).getString("initial_name");
               initial_id[i] = JA.getJSONObject(i).getString("initial_id");
              patient_main_type_name[i] = JA.getJSONObject(i).getString("patient_main_type_name");
              patient_type_name[i] = JA.getJSONObject(i).getString("patient_type_name");
               religion_name[i] = JA.getJSONObject(i).getString("religion_name");
               caste_name[i] = JA.getJSONObject(i).getString("caste_name");
            }

             spinner_fn();


        }


        catch(Exception e)
        {
            Log.e("Fail 3", e.toString());
        }

asked 20 secs ago

user

10

spinner values not displaying in android