public class Person {
private String name;
private int age;
}
Person person = new Person();
person.setName("John");
person.setAge(30);
Gson gson = new Gson();
String json = gson.toJson(person);
System.out.println(json);
String json = "{\"name\":\"John\",\"age\":30}";
Gson gson = new Gson();
Person person = gson.fromJson(json, Person.class);
System.out.println(person.getName());
System.out.println(person.getAge());
