java宠物商店项目代码，我需要若干个宠物的类如Cat，Dog用来输入宠物的颜色，年龄，名字和出售价格。还需要一个Pet的类用来修改宠物信息并且拥有删除功能，还需要用java swing来实现用户界面，这个界面中选择不同的宠物类会跳转相应到的界面。最后大部分代码需要标记好注释

好的，以下是一个简单的宠物商店项目代码示例，包括Cat、Dog和Pet类，以及基本的Swing用户界面。

Cat类：

public class Cat {
    private String color;
    private int age;
    private String name;
    private double price;

    public Cat(String color, int age, String name, double price) {
        this.color = color;
        this.age = age;
        this.name = name;
        this.price = price;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

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

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }
}

Dog类：

public class Dog {
    private String color;
    private int age;
    private String name;
    private double price;

    public Dog(String color, int age, String name, double price) {
        this.color = color;
        this.age = age;
        this.name = name;
        this.price = price;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

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

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }
}

Pet类：

import java.util.ArrayList;
import java.util.List;

public class Pet {
    private List<Cat> cats = new ArrayList<>();
    private List<Dog> dogs = new ArrayList<>();

    public void addCat(Cat cat) {
        cats.add(cat);
    }

    public void addDog(Dog dog) {
        dogs.add(dog);
    }

    public void removeCat(Cat cat) {
        cats.remove(cat);
    }

    public void removeDog(Dog dog) {
        dogs.remove(dog);
    }

    public List<Cat> getCats() {
        return cats;
    }

    public List<Dog> getDogs() {
        return dogs;
    }
}

Swing用户界面：

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class PetUI extends JFrame {
    private JPanel mainPanel;
    private JButton catButton;
    private JButton dogButton;
    private JPanel catPanel;
    private JPanel dogPanel;
    private JTextArea catTextArea;
    private JTextArea dogTextArea;
    private JTextField catColorField;
    private JTextField catAgeField;
    private JTextField catNameField;
    private JTextField catPriceField;
    private JButton catAddButton;
    private JButton catRemoveButton;
    private JTextField dogColorField;
    private JTextField dogAgeField;
    private JTextField dogNameField;
    private JTextField dogPriceField;
    private JButton dogAddButton;
    private JButton dogRemoveButton;

    private Pet pet = new Pet();

    public PetUI() {
        super("Pet Shop");

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        mainPanel = new JPanel(new CardLayout());

        catButton = new JButton("Cats");
        catButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                CardLayout cardLayout = (CardLayout) mainPanel.getLayout();
                cardLayout.show(mainPanel, "catPanel");
            }
        });
        mainPanel.add(catButton);

        dogButton = new JButton("Dogs");
        dogButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                CardLayout cardLayout = (CardLayout) mainPanel.getLayout();
                cardLayout.show(mainPanel, "dogPanel");
            }
        });
        mainPanel.add(dogButton);

        catPanel = new JPanel(new BorderLayout());
        catTextArea = new JTextArea();
        catTextArea.setEditable(false);
        catPanel.add(catTextArea, BorderLayout.CENTER);

        JPanel catInputPanel = new JPanel(new GridLayout(5, 2));
        catInputPanel.add(new JLabel("Color:"));
        catColorField = new JTextField();
        catInputPanel.add(catColorField);
        catInputPanel.add(new JLabel("Age:"));
        catAgeField = new JTextField();
        catInputPanel.add(catAgeField);
        catInputPanel.add(new JLabel("Name:"));
        catNameField = new JTextField();
        catInputPanel.add(catNameField);
        catInputPanel.add(new JLabel("Price:"));
        catPriceField = new JTextField();
        catInputPanel.add(catPriceField);
        catAddButton = new JButton("Add");
        catAddButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String color = catColorField.getText();
                int age = Integer.parseInt(catAgeField.getText());
                String name = catNameField.getText();
                double price = Double.parseDouble(catPriceField.getText());
                Cat cat = new Cat(color, age, name, price);
                pet.addCat(cat);
                updateCatTextArea();
            }
        });
        catInputPanel.add(catAddButton);
        catRemoveButton = new JButton("Remove");
        catRemoveButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int index = catTextArea.getSelectedIndex();
                if (index != -1) {
                    Cat cat = pet.getCats().get(index);
                    pet.removeCat(cat);
                    updateCatTextArea();
                }
            }
        });
        catInputPanel.add(catRemoveButton);
        catPanel.add(catInputPanel, BorderLayout.SOUTH);

        mainPanel.add(catPanel, "catPanel");

        dogPanel = new JPanel(new BorderLayout());
        dogTextArea = new JTextArea();
        dogTextArea.setEditable(false);
        dogPanel.add(dogTextArea, BorderLayout.CENTER);

        JPanel dogInputPanel = new JPanel(new GridLayout(5, 2));
        dogInputPanel.add(new JLabel("Color:"));
        dogColorField = new JTextField();
        dogInputPanel.add(dogColorField);
        dogInputPanel.add(new JLabel("Age:"));
        dogAgeField = new JTextField();
        dogInputPanel.add(dogAgeField);
        dogInputPanel.add(new JLabel("Name:"));
        dogNameField = new JTextField();
        dogInputPanel.add(dogNameField);
        dogInputPanel.add(new JLabel("Price:"));
        dogPriceField = new JTextField();
        dogInputPanel.add(dogPriceField);
        dogAddButton = new JButton("Add");
        dogAddButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String color = dogColorField.getText();
                int age = Integer.parseInt(dogAgeField.getText());
                String name = dogNameField.getText();
                double price = Double.parseDouble(dogPriceField.getText());
                Dog dog = new Dog(color, age, name, price);
                pet.addDog(dog);
                updateDogTextArea();
            }
        });
        dogInputPanel.add(dogAddButton);
        dogRemoveButton = new JButton("Remove");
        dogRemoveButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int index = dogTextArea.getSelectedIndex();
                if (index != -1) {
                    Dog dog = pet.getDogs().get(index);
                    pet.removeDog(dog);
                    updateDogTextArea();
                }
            }
        });
        dogInputPanel.add(dogRemoveButton);
        dogPanel.add(dogInputPanel, BorderLayout.SOUTH);

        mainPanel.add(dogPanel, "dogPanel");

        add(mainPanel);

        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }

    private void updateCatTextArea() {
        catTextArea.setText("");
        for (Cat cat : pet.getCats()) {
            catTextArea.append(cat.getName() + " (" + cat.getColor() + ", " + cat.getAge() + ") - $" + cat.getPrice() + "\n");
        }
    }

    private void updateDogTextArea() {
        dogTextArea.setText("");
        for (Dog dog : pet.getDogs()) {
            dogTextArea.append(dog.getName() + " (" + dog.getColor() + ", " + dog.getAge() + ") - $" + dog.getPrice() + "\n");
        }
    }

    public static void main(String[] args) {
        new PetUI();
    }
}

这个示例代码只是一个基本的框架，你可以根据实际需求进行修改和扩展。注意在实际项目中，需要进行更多的错误检查和异常处理。