<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.7</version>
</dependency>
public class Person {
private String name;
private int age;
// Getters and setters
}
Person person = new Person();
person.setAge(25);
Gson gson = new Gson();
String json = gson.toJson(person);
System.out.println(json);
Gson gson = new Gson();
Person person = gson.fromJson(json, Person.class);
System.out.println(person.getName());
System.out.println(person.getAge());