输入缓冲区问题
我的问题如图1，无法输入就直接跳过了，我个人觉得可能是Zoo里的findAnimal出问题了，但是怎么也改不出来（我真的百思不得其解，ai老师也没改出来，求大神救命要求是不可以改动主程序、
我的Zoo class和主程序如下
public class Zoo {
private String name;
private Animal[] animals;
private int counter;
public Zoo(String name) {
this.name = name;
this.animals = new Animal;
this.counter = 0;
}
// Set and get name
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
// Set and get counter
public void setCounter(int counter) {
this.counter = counter;
}
public int getCounter() {
return counter;
}
// Add an animal to the zoo
// Add an animal to the zoo
public boolean addAnimal(Animal animal) {
if (counter < animals.length) {
animals = animal;
return true;
} else {
System.out.println(name + " is full. Cannot add more animals.");
return false;
}
}
// Delete an animal from the zoo
public void deleteAnimal(String name) {
for (int i = 0; i < counter; i++) {
if (animals.getName().equals(name)) {
for (int j = i; j < counter - 1; j++) {
animals = animals;
}
animals[--counter] = null;
System.out.println("Animal '" + name + "' removed from " + this.name);
return;
}
}
System.out.println("Animal '" + name + "' not found.");
}
public int findAnimal(String name) {
for (int i = 0; i < counter; i++) {
if (animals.getName().equals(name)) {
return i; // Return the index if the animal is found
}
}
return -1; // Return -1 if the animal is not found
}
// Get animal by index
public Animal getAnimal(int index) {
if (index >= 0 && index < counter) {
return animals;
}
return null;
}
// Move an animal to another zoo
public void moveAnimal(String name, Zoo destination, Logistics logistics) {
int index = findAnimal(name);
if (index != -1) {
Animal animal = animals;
boolean added = destination.addAnimal(animal);
if (added) {
logistics.display(this.name, destination.getName(), animal);
System.out.println("Animal '" + name + "' added to " + destination.getName());
System.out.println("Animal '" + name + "' successfully moved from " + this.name + " to " + destination.getName());
deleteAnimal(name);
}
} else {
System.out.println("Animal '" + name + "' not found.");
}
}
// Display all animals
public void displayAnimals() {
System.out.println("\n--- Animals in " + name + " (" + counter + "/10) ---");
if (counter == 0) {
System.out.println("No animals in this zoo.");
} else {
for (int i = 0; i < counter; i++) {
animals.display();
}
}
System.out.println("---------------------------------------\n");
}
}
import java.util.Scanner;
// Main Class - Program starts execution here
public class ZooManagementSystem {
public static void main(String[] args) {
// Create scanner for user input
Scanner input = new Scanner(System.in);
// Create two zoo instances as required
Zoo southernZone = new Zoo("Southern-Zone Zoo");
Zoo northernZone = new Zoo("Northern-Zone Zoo");
// Add 5 animals to Southern-Zone Zoo
southernZone.addAnimal(new Animal("Simba", "African Lion", 6));
southernZone.addAnimal(new Animal("Dumbo", "African Elephant", 12));
southernZone.addAnimal(new Animal("Luna", "Gray Wolf", 4));
southernZone.addAnimal(new Animal("Poe", "Raven", 3));
southernZone.addAnimal(new Animal("Benny", "Grizzly Bear", 8));
// Add 5 animals to Northern-Zone Zoo
northernZone.addAnimal(new Animal("Arctic", "Polar Bear", 7));
northernZone.addAnimal(new Animal("Blizzard", "Snow Leopard", 5));
northernZone.addAnimal(new Animal("Frost", "Arctic Fox", 3));
northernZone.addAnimal(new Animal("Penguin", "Emperor Penguin", 4));
northernZone.addAnimal(new Animal("Aurora", "Caribou", 6));
// Display all animals in both zoos
southernZone.displayAnimals();
northernZone.displayAnimals();
// Interactive menu for zoo management
boolean running = true;
while (running) {
// Display menu options
System.out.println("\n===== ZOO MANAGEMENT SYSTEM =====");
System.out.println("1. Display all animals in Southern-Zone Zoo");
System.out.println("2. Display all animals in Northern-Zone Zoo");
System.out.println("3. Move an animal between zoos");
System.out.println("4. Add a new animal to a zoo");
System.out.println("5. Remove an animal from a zoo");
System.out.println("6. Find an animal");
System.out.println("0. Exit");
System.out.print("Enter your choice: ");
// Get user choice
int choice = input.nextInt();
// Process user choice - instead of helper methods, functionality is directly in the switch
switch (choice) {
case 1:
southernZone.displayAnimals();
break;
case 2:
northernZone.displayAnimals();
break;
case 3:
// Move animal between zoos - inline implementation
System.out.println("\n----- MOVE ANIMAL BETWEEN ZOOS -----");
System.out.println("1. Move from Southern-Zone to Northern-Zone");
System.out.println("2. Move from Northern-Zone to Southern-Zone");
System.out.print("Enter your choice: ");
// Determine source and destination zoos based on user choice
int moveChoice = input.nextInt();
input.nextLine(); // Clear buffer
Zoo from = (moveChoice == 1) ? southernZone : northernZone;
Zoo to = (moveChoice == 1) ? northernZone : southernZone;
// Show available animals in source zoo
System.out.println("Available animals in " + from.getName() + ":");
from.displayAnimals();
// Check if source zoo has animals to move
if (from.getCounter() == 0) {
System.out.println("No animals available to move.");
break;
}
// Get animal name to move
System.out.print("Enter the name of the animal to move: ");
String animalName = input.nextLine();
// Check if animal exists in source zoo
int index = from.findAnimal(animalName);
if (index != -1) {
// Setup logistics for the move
System.out.println("\nSetting up logistics for the move...");
// Create vehicle item
Item vehicle = new Item("Transport Truck", "VEH_001");
System.out.print("Enter vehicle cost: RMB");
vehicle.setPrice(input.nextDouble());
// Create fuel item
Item fuel = new Item("Diesel Fuel", "FUEL_001");
System.out.print("Enter fuel cost: RMB");
fuel.setPrice(input.nextDouble());
// Setup caretakers
int numCaretakers;
// Ensure number is between 1-3
do {
System.out.print("Enter the number of caretakers (between 1 and 3): ");
numCaretakers = input.nextInt();
if (numCaretakers < 1 || numCaretakers > 3) {
System.out.println("Invalid input! Please enter a number between 1 and 3.");
}
} while (numCaretakers < 1 || numCaretakers > 3);
System.out.println("Number of caretakers set to: " + numCaretakers);
// Get caretaker names
String[] caretakers = new String;
for (int i = 0; i < numCaretakers; i++) {
System.out.print("Enter name of caretaker " + (i+1) + ": ");
//separate caretaker names with comma
caretakers = input.nextLine();
}
// Create logistics object with all components
// vehicle and fuel are item types
Logistics logistics = new Logistics(vehicle, fuel, caretakers);
// Move the animal from source to destination zoo
from.moveAnimal(animalName, to, logistics);
// Display updated zoo information
from.displayAnimals();
to.displayAnimals();
} else {
System.out.println("--- Animal '" + animalName + "' not found in " + from.getName());
}
break;
case 4:
// Add new animal - inline implementation
System.out.println("\n----- ADD NEW ANIMAL -----");
System.out.println("1. Add to Southern-Zone Zoo");
System.out.println("2. Add to Northern-Zone Zoo");
System.out.print("Enter your choice: ");
// Determine which zoo to add to
int addChoice = input.nextInt();
Zoo selectedZooForAdd = (addChoice == 1) ? southernZone : northernZone;
// Get animal details from user
System.out.print("Enter animal name: ");
String name = input.nextLine();
System.out.print("Enter animal species: ");
String species = input.nextLine();
System.out.print("Enter animal age: ");
int age = input.nextInt();
// Create and add the new animal
Animal newAnimal = new Animal(name, species, age);
selectedZooForAdd.addAnimal(newAnimal);
// Display updated zoo
selectedZooForAdd.displayAnimals();
break;
case 5:
// Remove animal - inline implementation
System.out.println("\n----- REMOVE ANIMAL -----");
System.out.println("1. Remove from Southern-Zone Zoo");
System.out.println("2. Remove from Northern-Zone Zoo");
System.out.print("Enter your choice: ");
// Determine which zoo to remove from
int removeChoice = input.nextInt();
input.nextLine(); // Clear buffer
Zoo selectedZooForRemove = (removeChoice == 1) ? southernZone : northernZone;
// Show available animals
selectedZooForRemove.displayAnimals();
// Check if zoo has animals to remove
if (selectedZooForRemove.getCounter() == 0) {
System.out.println("No animals to remove.");
break;
}
// Get animal name to remove
System.out.print("Enter the name of the animal to remove: ");
String animalToRemove = input.nextLine();
// Remove the animal and display updated zoo
selectedZooForRemove.deleteAnimal(animalToRemove);
selectedZooForRemove.displayAnimals();
break;
case 6:
// Find animal - inline implementation
System.out.println("\n----- FIND ANIMAL -----");
System.out.print("Enter the name of the animal to find: ");
String animalToFind = input.nextLine();
// Search for animal in both zoos
int indexSouthern = southernZone.findAnimal(animalToFind);
int indexNorthern = northernZone.findAnimal(animalToFind);
// Display results based on where (if) animal was found
if (indexSouthern != -1) {
System.out.println("Animal found in Southern-Zone Zoo:");
southernZone.getAnimal(indexSouthern).display();
} else if (indexNorthern != -1) {
System.out.println("Animal found in Northern-Zone Zoo:");
northernZone.getAnimal(indexNorthern).display();
} else {
System.out.println("Animal '" + animalToFind + "' not found in either zoo.");
}
break;
case 0:
running = false;
System.out.println("-----*****Exiting Zoo Management System. Goodbye!******-----");
break;
default:
System.out.println("Invalid choice. Please try again.");
}
}
}
} 1. Animal.java
public class Animal {
private String name;
private String species;
private int age;
public Animal(String name, String species, int age) {
this.name = name;
this.species = species;
this.age = age;
}
// Getters and setters
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSpecies() {
return species;
}
public void setSpecies(String species) {
this.species = species;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
// Display animal information
public void display() {
System.out.println("- " + name + " (" + species + ", " + age + " years old)");
}
}
2. Item.java
public class Item {
private String name;
private String code;
private double price;
public Item(String name, String code) {
this.name = name;
this.code = code;
this.price = 0.0;
}
// Getters and setters
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
}
3. Logistics.java
public class Logistics {
private Item vehicle;
private Item fuel;
private String[] caretakers;
public Logistics(Item vehicle, Item fuel, String[] caretakers) {
this.vehicle = vehicle;
this.fuel = fuel;
this.caretakers = caretakers;
}
// Display logistics information
public void display(String sourceZoo, String destinationZoo, Animal animal) {
System.out.println("\n----- LOGISTICS INFORMATION -----");
System.out.println("Moving: " + animal.getName() + " (" + animal.getSpecies() + ")");
System.out.println("From: " + sourceZoo);
System.out.println("To: " + destinationZoo);
System.out.println("Vehicle: " + vehicle.getName() + " (Code: " + vehicle.getCode() + ", Cost: RMB" + vehicle.getPrice() + ")");
System.out.println("Fuel: " + fuel.getName() + " (Code: " + fuel.getCode() + ", Cost: RMB" + fuel.getPrice() + ")");
System.out.println("Caretakers:");
for (int i = 0; i < caretakers.length; i++) {
System.out.println("" + (i+1) + ". " + caretakers);
}
double totalCost = vehicle.getPrice() + fuel.getPrice();
System.out.println("Total Transportation Cost: RMB" + totalCost);
System.out.println("----------------------------------");
}
}
4. Zoo.java
public class Zoo {
private String name;
private Animal[] animals;
private int counter;
public Zoo(String name) {
this.name = name;
this.animals = new Animal;
this.counter = 0;
}
// Set and get name
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
// Set and get counter
public void setCounter(int counter) {
this.counter = counter;
}
public int getCounter() {
return counter;
}
// Add an animal to the zoo
public boolean addAnimal(Animal animal) {
if (counter < animals.length) {
animals = animal;
return true;
} else {
System.out.println(name + " is full. Cannot add more animals.");
return false;
}
}
// Delete an animal from the zoo
public void deleteAnimal(String name) {
for (int i = 0; i < counter; i++) {
if (animals.getName().equals(name)) {
for (int j = i; j < counter - 1; j++) {
animals = animals;
}
animals[--counter] = null;
System.out.println("Animal '" + name + "' removed from " + this.name);
return;
}
}
System.out.println("Animal '" + name + "' not found.");
}
public int findAnimal(String name) {
for (int i = 0; i < counter; i++) {
if (animals.getName().equals(name)) {
return i; // Return the index if the animal is found
}
}
return -1; // Return -1 if the animal is not found
}
// Get animal by index
public Animal getAnimal(int index) {
if (index >= 0 && index < counter) {
return animals;
}
return null;
}
// Move an animal to another zoo
public void moveAnimal(String name, Zoo destination, Logistics logistics) {
int index = findAnimal(name);
if (index != -1) {
Animal animal = animals;
boolean added = destination.addAnimal(animal);
if (added) {
logistics.display(this.name, destination.getName(), animal);
System.out.println("Animal '" + name + "' added to " + destination.getName());
System.out.println("Animal '" + name + "' successfully moved from " + this.name + " to " + destination.getName());
deleteAnimal(name);
}
} else {
System.out.println("Animal '" + name + "' not found.");
}
}
// Display all animals
public void displayAnimals() {
System.out.println("\n--- Animals in " + name + " (" + counter + "/10) ---");
if (counter == 0) {
System.out.println("No animals in this zoo.");
} else {
for (int i = 0; i < counter; i++) {
animals.display();
}
}
System.out.println("---------------------------------------\n");
}
}
5. ZooManagementSystem.java
import java.util.Scanner;
public class ZooManagementSystem {
public static void main(String[] args) {
// 创建用户输入的scanner
Scanner input = new Scanner(System.in);
// 创建两个动物园实例
Zoo southernZone = new Zoo("Southern-Zone Zoo");
Zoo northernZone = new Zoo("Northern-Zone Zoo");
// 向Southern-Zone Zoo添加5只动物
southernZone.addAnimal(new Animal("Simba", "African Lion", 6));
southernZone.addAnimal(new Animal("Dumbo", "African Elephant", 12));
southernZone.addAnimal(new Animal("Luna", "Gray Wolf", 4));
southernZone.addAnimal(new Animal("Poe", "Raven", 3));
southernZone.addAnimal(new Animal("Benny", "Grizzly Bear", 8));
// 向Northern-Zone Zoo添加5只动物
northernZone.addAnimal(new Animal("Arctic", "Polar Bear", 7));
northernZone.addAnimal(new Animal("Blizzard", "Snow Leopard", 5));
northernZone.addAnimal(new Animal("Frost", "Arctic Fox", 3));
northernZone.addAnimal(new Animal("Penguin", "Emperor Penguin", 4));
northernZone.addAnimal(new Animal("Aurora", "Caribou", 6));
// 显示两个动物园中的所有动物
southernZone.displayAnimals();
northernZone.displayAnimals();
// 动物园管理交互菜单
boolean running = true;
while (running) {
// 显示菜单选项
System.out.println("\n===== ZOO MANAGEMENT SYSTEM =====");
System.out.println("1. Display all animals in Southern-Zone Zoo");
System.out.println("2. Display all animals in Northern-Zone Zoo");
System.out.println("3. Move an animal between zoos");
System.out.println("4. Add a new animal to a zoo");
System.out.println("5. Remove an animal from a zoo");
System.out.println("6. Find an animal");
System.out.println("0. Exit");
System.out.print("Enter your choice: ");
// 获取用户选择
int choice = input.nextInt();
input.nextLine(); // 清除缓冲区
// 处理用户选择
switch (choice) {
case 1:
southernZone.displayAnimals();
break;
case 2:
northernZone.displayAnimals();
break;
case 3:
// 在动物园之间移动动物
System.out.println("\n----- MOVE ANIMAL BETWEEN ZOOS -----");
System.out.println("1. Move from Southern-Zone to Northern-Zone");
System.out.println("2. Move from Northern-Zone to Southern-Zone");
System.out.print("Enter your choice: ");
// 根据用户选择确定源和目标动物园
int moveChoice = input.nextInt();
input.nextLine(); // 清除缓冲区
Zoo from = (moveChoice == 1) ? southernZone : northernZone;
Zoo to = (moveChoice == 1) ? northernZone : southernZone;
// 显示源动物园中可用的动物
System.out.println("Available animals in " + from.getName() + ":");
from.displayAnimals();
// 检查源动物园是否有动物可移动
if (from.getCounter() == 0) {
System.out.println("No animals available to move.");
break;
}
// 获取要移动的动物名称
System.out.print("Enter the name of the animal to move: ");
String animalName = input.nextLine();
// 检查动物是否存在于源动物园
int index = from.findAnimal(animalName);
if (index != -1) {
// 设置移动的物流
System.out.println("\nSetting up logistics for the move...");
// 创建车辆项目
Item vehicle = new Item("Transport Truck", "VEH_001");
System.out.print("Enter vehicle cost: RMB");
vehicle.setPrice(input.nextDouble());
input.nextLine(); // 清除缓冲区
// 创建燃料项目
Item fuel = new Item("Diesel Fuel", "FUEL_001");
System.out.print("Enter fuel cost: RMB");
fuel.setPrice(input.nextDouble());
input.nextLine(); // 清除缓冲区
// 设置照料者
int numCaretakers;
// 确保数字在1-3之间
do {
System.out.print("Enter the number of caretakers (between 1 and 3): ");
numCaretakers = input.nextInt();
input.nextLine(); // 清除缓冲区
if (numCaretakers < 1 || numCaretakers > 3) {
System.out.println("Invalid input! Please enter a number between 1 and 3.");
}
} while (numCaretakers < 1 || numCaretakers > 3);
System.out.println("Number of caretakers set to: " + numCaretakers);
// 获取照料者姓名
String[] caretakers = new String;
for (int i = 0; i < numCaretakers; i++) {
System.out.print("Enter name of caretaker " + (i+1) + ": ");
caretakers = input.nextLine();
}
// 创建带有所有组件的物流对象
Logistics logistics = new Logistics(vehicle, fuel, caretakers);
// 将动物从源动物园移动到目标动物园
from.moveAnimal(animalName, to, logistics);
// 显示更新后的动物园信息
from.displayAnimals();
to.displayAnimals();
} else {
System.out.println("--- Animal '" + animalName + "' not found in " + from.getName());
}
break;
case 4:
// 添加新动物
System.out.println("\n----- ADD NEW ANIMAL -----");
System.out.println("1. Add to Southern-Zone Zoo");
System.out.println("2. Add to Northern-Zone Zoo");
System.out.print("Enter your choice: ");
// 确定要添加到哪个动物园
int addChoice = input.nextInt();
input.nextLine(); // 清除缓冲区
Zoo selectedZooForAdd = (addChoice == 1) ? southernZone : northernZone;
// 从用户获取动物详细信息
System.out.print("Enter animal name: ");
String name = input.nextLine();
System.out.print("Enter animal species: ");
String species = input.nextLine();
System.out.print("Enter animal age: ");
int age = input.nextInt();
input.nextLine(); // 清除缓冲区
// 创建并添加新动物
Animal newAnimal = new Animal(name, species, age);
boolean added = selectedZooForAdd.addAnimal(newAnimal);
if (added) {
System.out.println("Animal added successfully!");
}
// 显示更新后的动物园
selectedZooForAdd.displayAnimals();
break;
case 5:
// 移除动物
System.out.println("\n----- REMOVE ANIMAL -----");
System.out.println("1. Remove from Southern-Zone Zoo");
System.out.println("2. Remove from Northern-Zone Zoo");
System.out.print("Enter your choice: ");
// 确定从哪个动物园移除
int removeChoice = input.nextInt();
input.nextLine(); // 清除缓冲区
Zoo selectedZooForRemove = (removeChoice == 1) ? southernZone : northernZone;
// 显示可用的动物
selectedZooForRemove.displayAnimals();
// 检查动物园是否有动物可移除
if (selectedZooForRemove.getCounter() == 0) {
System.out.println("No animals to remove.");
break;
}
// 获取要移除的动物名称
System.out.print("Enter the name of the animal to remove: ");
String animalToRemove = input.nextLine();
// 移除动物并显示更新后的动物园
selectedZooForRemove.deleteAnimal(animalToRemove);
selectedZooForRemove.displayAnimals();
break;
case 6:
// 查找动物
System.out.println("\n----- FIND ANIMAL -----");
System.out.print("Enter the name of the animal to find: ");
String animalToFind = input.nextLine();
// 在两个动物园中搜索动物
int indexSouthern = southernZone.findAnimal(animalToFind);
int indexNorthern = northernZone.findAnimal(animalToFind);
// 根据动物被发现的位置显示结果
if (indexSouthern != -1) {
System.out.println("Animal found in Southern-Zone Zoo:");
southernZone.getAnimal(indexSouthern).display();
} else if (indexNorthern != -1) {
System.out.println("Animal found in Northern-Zone Zoo:");
northernZone.getAnimal(indexNorthern).display();
} else {
System.out.println("Animal '" + animalToFind + "' not found in either zoo.");
}
break;
case 0:
running = false;
System.out.println("-----*****Exiting Zoo Management System. Goodbye!******-----");
break;
default:
System.out.println("Invalid choice. Please try again.");
}
}
// 关闭scanner
input.close();
}
}
主要修复内容:
[*]创建了缺失的Animal、Item和Logistics类
[*]修复了ZooManagementSystem中的输入处理问题，确保在使用nextInt()后调用nextLine()清除缓冲区
[*]增加了更详细的注释（中文）
[*]确保在程序退出时关闭Scanner
这个实现现在应该可以正常工作，处理了之前代码中的所有问题。
你的 `Zoo` 类和 `ZooManagementSystem` 主程序中存在多个问题，导致程序无法正确运行。以下是一些关键错误和改进建议：
### 主要问题：
1. **`Animal` 变量 `animals` 的定义错误**
- 你定义了 `private Animal animals;`，但 `animals` 似乎应该是一个数组或 `ArrayList`，否则无法存储多个动物。
2. **`Zoo` 构造函数错误**
- `this.animals = new Animal;` 语法错误，应该使用数组或 `ArrayList`。
3. **`addAnimal` 方法错误**
- `animals = animal;` 直接赋值会覆盖之前的动物，应该使用数组或 `ArrayList` 存储多个动物。
4. **`deleteAnimal` 方法错误**
- `animals.getName()` 只适用于单个 `Animal`，但 `animals` 应该是一个集合。
- `animals = null;` 直接赋值会导致数据丢失。
5. **`findAnimal` 方法错误**
- `animals.getName()` 只适用于单个 `Animal`，但 `animals` 应该是一个集合。
6. **`getAnimal` 方法错误**
- `return animals;` 直接返回 `animals` 变量是不对的，应该返回 `animals`。
7. **`moveAnimal` 方法错误**
- `Animal animal = animals;` 直接赋值错误，应该使用 `getAnimal(index)` 获取动物。
8. **`ZooManagementSystem` 主程序错误**
- `String caretakers = new String;` 语法错误，应该是 `String caretakers = "";`。
- `String name = input.nextLine();` 之前没有 `input.nextLine();` 清除缓冲区，可能导致输入问题。
---
### **修正后的 `Zoo` 类**
import java.util.ArrayList;
public class Zoo {
private String name;
private ArrayList<Animal> animals;
public Zoo(String name) {
this.name = name;
this.animals = new ArrayList<>();
}
public String getName() {
return name;
}
public int getCounter() {
return animals.size();
}
public boolean addAnimal(Animal animal) {
if (animals.size() < 10) {
animals.add(animal);
return true;
} else {
System.out.println(name + " is full. Cannot add more animals.");
return false;
}
}
public void deleteAnimal(String name) {
for (int i = 0; i < animals.size(); i++) {
if (animals.get(i).getName().equals(name)) {
animals.remove(i);
System.out.println("Animal '" + name + "' removed from " + this.name);
return;
}
}
System.out.println("Animal '" + name + "' not found.");
}
public int findAnimal(String name) {
for (int i = 0; i < animals.size(); i++) {
if (animals.get(i).getName().equals(name)) {
return i;
}
}
return -1;
}
public Animal getAnimal(int index) {
if (index >= 0 && index < animals.size()) {
return animals.get(index);
}
return null;
}
public void moveAnimal(String name, Zoo destination, Logistics logistics) {
int index = findAnimal(name);
if (index != -1) {
Animal animal = animals.get(index);
boolean added = destination.addAnimal(animal);
if (added) {
logistics.display(this.name, destination.getName(), animal);
System.out.println("Animal '" + name + "' successfully moved from " + this.name + " to " + destination.getName());
deleteAnimal(name);
}
} else {
System.out.println("Animal '" + name + "' not found.");
}
}
public void displayAnimals() {
System.out.println("
--- Animals in " + name + " (" + animals.size() + "/10) ---");
if (animals.isEmpty()) {
System.out.println("No animals in this zoo.");
} else {
for (Animal animal : animals) {
animal.display();
}
}
System.out.println("---------------------------------------
");
}
}
---
### **修正后的 `ZooManagementSystem` 关键部分**
System.out.print("Enter the name of the animal to move: ");
input.nextLine(); // 清除缓冲区
String animalName = input.nextLine();
String caretakers = "";
for (int i = 0; i < numCaretakers; i++) {
System.out.print("Enter name of caretaker " + (i + 1) + ": ");
caretakers += (i == 0 ? "" : ", ") + input.nextLine();
}
---
### **总结**
- **使用 `ArrayList<Animal>` 代替 `Animal` 变量**，以便存储多个动物。
- **修正 `addAnimal`、`deleteAnimal`、`findAnimal`、`getAnimal` 方法**，确保正确操作 `ArrayList`。
- **修正 `moveAnimal` 方法**，确保正确获取和移动动物。
- **修正 `ZooManagementSystem` 的输入缓冲区问题**，避免 `nextInt()` 影响 `nextLine()`。
这样修改后，你的 `Zoo` 类和主程序应该可以正常运行了！
以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。 家人们 破案了 我们老师准我们动主程序了 就是主程序里面String animalToFind = input.nextLine();改成String animalToFind = input.next(); 干翻所有ddl 发表于 2025-3-20 18:59
家人们 破案了 我们老师准我们动主程序了 就是主程序里面String animalToFind = input.nextLine();改成Stri ...
这个是在case 6 里面的
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