Question

Using java, Represent the following using classes and interfaces: Dogs, Fish, and BoxTurtles are all Animals. All swim except BoxTurtles. Next, make a list containing all kinds of animals, fill it and print it; then make a list of only animals that can swim

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

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Thank You !


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public class Animal {

    private boolean canSwim;
    private String animalType;

    public Animal(String animalType) {
        canSwim = false;
        this.animalType = animalType;

    }

    public void setAnimalType(String animalType) {
        this.animalType = animalType;
    }

    public String getAnimalType() {
        return animalType;
    }

    public Animal(boolean canSwim) {
        this.canSwim = canSwim;
    }

    public boolean isCanSwim() {
        return canSwim;
    }

    public void setCanSwim(boolean canSwim) {
        this.canSwim = canSwim;
    }

    @Override
    public String toString() {
        if (canSwim) {
            return animalType + " can swim";
        } else {
            return animalType + " can swim";
        }
    }
}

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public class Dog extends Animal {

    private static String animalType = "Dog";

    public Dog() {
        super(animalType);
        setCanSwim(true);
    }


}

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public class Fish extends Animal {

    private static String animalType = "Fish";

    public Fish() {
        super(animalType);
        setCanSwim(true);
    }

}

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public class BoxTurtles extends Animal {

    private static String animalType = "Box Turtles";

    public BoxTurtles() {
        super(animalType);
        setCanSwim(false);
    }


}

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import java.util.ArrayList;

public class MainAnimal {

    public static void main(String[] args) {


        // Next, make a list containing all kinds of animals,
        ArrayList<Animal> animals = new ArrayList<>();

        animals.add(new Dog());
        animals.add(new Fish());
        animals.add(new BoxTurtles());

        // fill it and print it;
        for (Animal animal : animals) {
            System.out.println(animal);
        }


        //then make a list of only animals that can swim
        ArrayList<Animal> swimmingAnimals = new ArrayList<>();

        swimmingAnimals.add(new Dog());
        swimmingAnimals.add(new Fish());
        System.out.println("Animals that can swim only");
        System.out.println("==========================");
        // fill it and print it;
        for (Animal animal : swimmingAnimals) {
            System.out.println(animal);
        }
    }
}

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