java My方法运行了两次，而它们应该只运行一次并映射。get（）正在影响所有条目

Question

因此，我正在处理一个带有循环（while (true) { //do stuff）的项目，并且我在映射中存储了值（只有2个条目）

第一个问题：方法执行两次（我认为这是映射部分的问题）。虚拟机。tick和VirtualPet。每个循环执行两次feed方法

第二期：地图。get（键）在所有键上执行，而不仅仅是在指定的键上

在我的主课上：

    private static VirtualPetShelter shelter = new VirtualPetShelter();
    private static Scanner input = new Scanner(System.in);

    public static void main(String[] args) {
        generatePets();
        gameLoop();
    }

    private static void showPets() {
        shelter.showPets();
    }

    private static void generatePets() {
        VirtualPet pet1 = new VirtualPet();
        VirtualPet pet2 = new VirtualPet();
        shelter.addPet("Max", pet1);
        shelter.addPet("Skippy", pet1);
    }

    private static void gameLoop() {
        while (true) {

            whatToDo();
            shelter.tick();
            showPets();
        }
    }

    private static void whatToDo() {
        System.out.println("What would you like to do?");
        System.out.println("\t 1: Feed");

        int response = input.nextInt();
        input.nextLine();

        switch (response) {
            case 1:
                feedOptions();
                break;
        }
    }

    private static void feedOptions() {
        System.out.println("Enter pet name or \"all\" to feed all:");
        showPetNames();
        String response = input.nextLine();

        if (response.toLowerCase().equals("all")) {
            shelter.feedAllPets();
        } else {
            shelter.feedPet(response);
        }
    }

在我的庇护班：

private Map<String, VirtualPet> pets = new HashMap<>();

    public VirtualPetShelter() {
    }

    public void addPet(String name, VirtualPet pet) {
        pets.put(name, pet);
    }

    public void showPets() {
        for (Map.Entry<String, VirtualPet> entry : pets.entrySet())
            System.out.println("\t" + entry.getKey() + "\n" +
                    "\t\tHunger: " + entry.getValue().getHunger());
    }

    public void showPetNames() {
        for (Map.Entry<String, VirtualPet> entry : pets.entrySet())
            System.out.println(entry.getKey());
    }

    public void feedAllPets() {
        for (VirtualPet value : pets.values())
            value.feed();
    }

    public void feedPet(String name) {
        pets.get(name).feed();
    }

    public void tick() {
        for (VirtualPet value : pets.values())
            value.tick();
    }

在VirtualSet类中：

    private int hunger;

    public VirtualPet() {
        hunger = 5;
    }

    public int getHunger() {
        return hunger;
    }

    public void feed() {
        hunger -= 2;
    }

    public void tick(){
       hunger += 1;
    }