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);
}