JAVA

jsonarray to list java

JSONArray data = new JSONArray(); //create data from this -> [{"thumb_url":"tb-1370913834.jpg","event_id":...}]

List<JSONObject> list = data.stream().map(o -> (JSONObject) o).collect(Collectors.toList());

jsonarray to List in java

List<Employee> list = mapper.readValue(jsonString,
TypeFactory.defaultInstance().constructCollectionType(List.class,  
   Employee.class));

converting array JSON to list

String userJson = "[{'name': 'Alex','id': 1}, "
				+ "{'name': 'Brian','id':2}, "
				+ "{'name': 'Charles','id': 3}]";

Gson gson = new Gson(); 

User[] userArray = gson.fromJson(userJson, User[].class);  

for(User user : userArray) {
	System.out.println(user);
}

how to convert a list of json to list of array

dataArray = [{"Value":10,"ValuePourcent":2},{"Value":20,"ValuePourcent":3},{"Value":51,"ValuePourcent":1}]

newFormat = dataArray.map(function(e){
                  return [e["Value"], e["ValuePourcent"]]
                  });