Person.java

public class Person {
    public String name;
    public int age;
    public Address address;

    public static Person of(String name, int age, Address address){
        final Person person = new Person();
        person.name = name;
        person.age = age;
        person.address = address;
        return person;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", address=" + address +
                '}';
    }
}