I have a json array of PDF files. What i need is to parse the pdf file via indexes, as there are no parameter name, just a value as PDF file. You can see my PDF file:

```
 @Override
                public void onResponse(JSONObject response) {
                    // response
                    Gson gson = new Gson() ;
                    MagazineResponseModel bookResponseModel;
                    bookResponseModel = gson.fromJson(response.toString(),MagazineResponseModel.class);
                    listGridViewBooks.addAll(bookResponseModel.getBooks());
                    mGridView.setAdapter(new MagazineGridViewAdapter(getActivity(),
                            R.layout.custom_books_view, listGridViewBooks));

                }

```

Here is the example JSON response, i want to parse the first item of "file" array. Does any body have an idea? Let me know if you need more explanation.

```
{"file": [
  "file1.pdf",
  "file2.pdf"
]  }

```