Can't access getJSONArray in java [closed]

Answer 1

try as:

JSONObject jSONObject = new JSONObject(jsonString);
String str_type=jSONObject.getString("type");

// using JSONArray
JSONArray featuresArr = jSONObject.getJSONArray("features");
  for (int i=0; i<featuresArr.length; i++){
    JSONObject anotherjsonObject = featuresArr.getJSONObject(i);
    //access the fields of that json object
    String str_type_one=anotherjsonObject.getString("type");
   JSONArray featuresArr_properties = anotherjsonObject.getJSONArray("properties");

   JSONObject propertiesjsonObject = featuresArr_properties.getJSONObject(0);
   String str_type=propertiesjsonObject.getString("type");
   String str_type=propertiesjsonObject.getString("thumb");
   String str_type=propertiesjsonObject.getString("name_pl");
   String str_type=propertiesjsonObject.getString("name_en");
 ////parse all items ...........
  }

Answer 2

It doesn't look like XML, but a JSON.

You should initialize a JSONObject with that string.

 JSONObject obj = new JSONObject(str);

And then to access a certain field just check if it exists, and then try to get a data from that field, for example to get the JSONArray call:

if (obj.has("features")&&!obj.isNull("features")){
  JSONArray array = obj.getJSONArray("");
  for (int i=0; i<array.length; i++){
    JSONObject anotherObject = array.getJSONObject(i);
    //access the fields of that json object
  }
}

Answer 3

Workable code:

import org.json.JSONArray;
import org.json.JSONObject;

    try {

        JSONObject jSONObject = new JSONObject(Json_str);
        String str_type=jSONObject.getString("type");

        JSONArray featuresArr = jSONObject.getJSONArray("features");
          for (int i=0; i<featuresArr.length(); i++)
          {
            JSONObject anotherjsonObject = featuresArr.getJSONObject(i);
            String str_type_one=anotherjsonObject.getString("type");
           JSONArray featuresArr_properties = anotherjsonObject.getJSONArray("properties");

           JSONObject propertiesjsonObject = featuresArr_properties.getJSONObject(0);
           str_type=propertiesjsonObject.getString("name_pl");
          }         

    } catch (Exception e) {
        e.printStackTrace();
        Log.i("Jsor parser error","Oh no!"  + e);
    }