如何在Java中将枚举拆分成多个类别

public enum Fruit {
    APPLE, ORANGE, BANANA, MANGO, STRAWBERRY, WATERMELON
}

public enum FruitCategory {
    CITRUS(Fruit.ORANGE),
    TROPICAL(Fruit.BANANA, Fruit.MANGO),
    BERRY(Fruit.STRAWBERRY),
    MELON(Fruit.WATERMELON);

    private final Fruit[] fruits;

    FruitCategory(Fruit... fruits) {
        this.fruits = fruits;
    }

    public Fruit[] getFruits() {
        return fruits;
    }
}

for (FruitCategory category : FruitCategory.values()) {
    System.out.println("Category: " + category.name());
    for (Fruit fruit : category.getFruits()) {
        System.out.println("- " + fruit.name());
    }
    System.out.println();
}