作成者に多数のパラメータがある場合は、コンストラクタアレイを考慮します.

ex) 점층적 생성자 패턴 예시

public class NutritionFacts {
    private final int servingSize;
    private final int servings;
    private final int calories;
    private final int fat;
    private final int sodium;
    private final int carbohyudrate;

    public NutritionFacts(int servingSize, int servings) {
        this(servingSize, servings, 0);
    }

    public NutritionFacts(int servingSize, int servings, int calories) {
        this(servingSize, servings, calories, 0);
    }

    public NutritionFacts(int servingSize, int servings, int calories, int fat) {
        this(servingSize, servings,calories,fat,0);
    }

    public NutritionFacts(int servingSize, int servings, int calories, int fat, int sodium) {
        this(servingSize, servings,calories, fat,sodium,0);
    }

    public NutritionFacts(int servingSize, int servings, int calories, int fat, int sodium, int carbohyudrate) {
        this.servingSize = servingSize;
        this.servings = servings;
        this.calories = calories;
        this.fat = fat;
        this.sodium = sodium;
        this.carbohyudrate = carbohyudrate;
    }
}

ex) 자바 빈즈 패턴

NutritionFacts nutritionFacts = new NutritionFacts();
nutritionFacts.setFat(0);
nutritionFacts.setCalories(0);
nutritionFacts.setServingSize(0);

NutritionFacts nutritionFacts = NutritionFacts.builder()
                                              .carbohyudrate(1)
                                              .fat(2)
                                              .calories(3)
                                              .servings(2)
                                              .build();