在java中使用GSON从JSON中提取数据

请帮助，这是我第一次使用 JSON/GSON。我从谷歌地理编码 API 获得了这个 JSON 数据，但不知道如何从中提取“formatted_address”。

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "Google Building 41",
               "short_name" : "Google Bldg 41",
               "types" : [ "premise" ]
            },
            {
               "long_name" : "1600",
               "short_name" : "1600",
               "types" : [ "street_number" ]
            },
            {
               "long_name" : "Amphitheatre Parkway",
               "short_name" : "Amphitheatre Pkwy",
               "types" : [ "route" ]
            },
            {
               "long_name" : "Mountain View",
               "short_name" : "Mountain View",
               "types" : [ "locality", "political" ]
            },
            {
               "long_name" : "Santa Clara County",
               "short_name" : "Santa Clara County",
               "types" : [ "administrative_area_level_2", "political" ]
            },
            {
               "long_name" : "California",
               "short_name" : "CA",
               "types" : [ "administrative_area_level_1", "political" ]
            },
            {
               "long_name" : "United States",
               "short_name" : "US",
               "types" : [ "country", "political" ]
            },
            {
               "long_name" : "94043",
               "short_name" : "94043",
               "types" : [ "postal_code" ]
            }
         ],
         "formatted_address" : "Google Bldg 41, 1600 Amphitheatre Pkwy, Mountain View, CA 94043, USA",
         "geometry" : {
            "bounds" : {
               "northeast" : {
                  "lat" : 37.4228642,
                  "lng" : -122.0851557
               },
               "southwest" : {
                  "lat" : 37.4221145,
                  "lng" : -122.0859841
               }
            },
            "location" : {
               "lat" : 37.4224082,
               "lng" : -122.0856086
            },
            "location_type" : "ROOFTOP",
            "viewport" : {
               "northeast" : {
                  "lat" : 37.4238383302915,
                  "lng" : -122.0842209197085
               },
               "southwest" : {
                  "lat" : 37.4211403697085,
                  "lng" : -122.0869188802915
               }
            }
         },
         "place_id" : "ChIJxQvW8wK6j4AR3ukttGy3w2s",
         "types" : [ "premise" ]
      }
   ],
   "status" : "OK"
}

这是我尝试过的，但它抛出 IndexOutOfBoundsException：

public String getLocationData(String location) {

        try {

            URL url = new URL(location);
            HttpURLConnection request = (HttpURLConnection) url.openConnection();
            request.connect();

            JsonParser parser = new JsonParser();
            JsonElement content = parser.parse(new InputStreamReader((InputStream) request.getContent()));
            JsonObject jObject = content.getAsJsonObject();
            JsonArray jArray = jObject.getAsJsonArray("results");
            jObject = jArray.get(1).getAsJsonObject();

            String result = jObject.getAsString();

            return result;

        } catch (MalformedURLException ex) {
            ex.printStackTrace();

        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return "fail";
    }