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 listOfObjects = new ArrayList();

List to JSON

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

JSON to LIST

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

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