public class Person { private String name; private int age; private List<String> hobbies; // getters and setters } public class Main { public static void main(String[] args) { Person person = new Person(); person.setName("John"); person.setAge(30); person.setHobbies(Arrays.asList("reading", "swimming", "hiking")); JSONSerializer serializer = new JSONSerializer(); String json = serializer.serialize(person); System.out.println(json); } }


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