Creating Data classes interfaces. Rethinking interfaces in medium

CharacterData.java

class CharacterData {
    int HP;
    int attack;
    int defense;

    //Implement all the boilerplate :D
}

CharacterDataWithSuppliers

class CharacterDataWithSuppliers {
    Supplier<Integer> HP;
    Supplier<Integer> attack;
    Supplier<Integer> defeense;
}