How to convert ArrayList of custom class to JsonArray in Java?

Question

I am trying to convert ArrayList of custom class to JsonArray. Below is my code. It executes fine but some JsonArray elements come as zeros even though they are numbers in the A

Answer 1

Consider a list of Objects of type Model.class

ArrayList<Model> listOfObjects = new ArrayList<Model>();

List to JSON

String jsonText =  new Gson().toJson(listOfObjects);

JSON to LIST

 Type listType = new TypeToken<List<Model>>() {}.getType();

 List<Model> myModelList = new Gson().fromJson(jsonText , listType);