[Solved] How can I add one list to another list’s field? [closed]

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I don’t know how you designed your models but you can follow this way:

class Person {
    String name;
    Integer age;
    List<Address> addressList;

    // getter, setter, const...
}

class Address {
    // some fields...
    // getter, setter, const...
}

And then you can add your address to your person via add method:

    Person p = new Person();
    Address a = new Address();
    // modiy person and address...
     
    p.getAddressList().add(a);

solved How can I add one list to another list’s field? [closed]