Bio Test

package Zettel01;

public class Animal {
    private String name;

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    private Animal[] animalFood = new Animal[10];

    public void addAnimalFood(Animal animal) {
        for (int i = 0; i < 10; i++) {
            if (animalFood[i] == null) {
                animalFood[i] = animal;
                break;
            }
        }
    }

    public void getAnimalFood() {
        for (int i = 0; i < 10; i++) {
            if (animalFood[i] != null) {
                System.out.println(animalFood[i].getName());
            } else {
                System.out.println(animalFood[i]);
            }
        }
    }

    private Plant[] plantFood = new Plant[10];

    public void addPlantFood(Plant plant) {
        for (int i = 0; i < 10; i++) {
            if (plantFood[i] == null) {
                plantFood[i] = plant;
                break;
            }
        }
    }

    public boolean eatsAnyAnimal() {
        for (int i = 0; i < 10; i++) {
            return animalFood[i] != null;
        }
        return false;
    }

    public boolean eatsAnyPlant() {
        for (int i = 0; i < 10; i++) {
            return plantFood[i] != null;
        }
        return false;
    }

    public void isHerbivore() {
        if (eatsAnyPlant() && !eatsAnyAnimal()) {
            System.out.println(this.name + " is an herbivore.");
        } else {
            System.out.println(this.name + " is not an herbivore.");
        }
    }

    public void isCarnivore() {
        if (eatsAnyAnimal() && !eatsAnyPlant()) {
            System.out.println(this.name + " is an carnivore.");
        }
        else {
            System.out.println(this.name + " is not an carnivore.");
        }
    }

    public void isOmnivore() {
        if (eatsAnyPlant() && eatsAnyAnimal()) {
            System.out.println(this.name + " is an omnivore.");
        } else {
            System.out.println(this.name + " is not an omnivore.");
        }
    }
}

package Zettel01;

public class Main {
    public static void main(String[] args) {
        Animal laohu = new Animal();
        laohu.setName("老虎");

        Animal houzi = new Animal();
        houzi.setName("猴子");

        laohu.addAnimalFood(houzi);

        // Things get printed out here
        laohu.getAnimalFood();
        laohu.isCarnivore();

        // Bio-Test
        System.out.println("-------------BIOTEST-------------");
        Plant gras = new Plant();
        gras.setDescription("Gras ist grün.");
        Plant beeren = new Plant();
        beeren.setDescription("Beeren sind rot.");
        Animal zebra = new Animal();
        zebra.setName("斑马🦓");
        zebra.addPlantFood(gras);
        Animal loewe = new Animal();
        loewe.setName("狮子🦁");
        loewe.addAnimalFood(zebra);
        Animal baer = new Animal();
        baer.setName("熊🐻");
        baer.addPlantFood(beeren);
        Animal fisch = new Animal();
        fisch.setName("鱼🐟");
        Plant alge = new Plant();
        fisch.addPlantFood(alge);
        baer.addAnimalFood(fisch);

        zebra.isHerbivore();
        zebra.isCarnivore();
        zebra.isOmnivore();

        loewe.isHerbivore();
        loewe.isCarnivore();
        loewe.isOmnivore();

        baer.isHerbivore();
        baer.isCarnivore();
        baer.isOmnivore();

        fisch.isHerbivore();
        fisch.isCarnivore();
        fisch.isOmnivore();
    }
}