用java 完整的写一个图书管理系统

好的，我可以给您提供一个Java实现的图书管理系统的基本代码框架。该系统实现了基本的图书管理功能，包括添加图书、查询图书、修改图书、删除图书等。具体实现细节可以根据您的具体要求进行修改。

import java.util.ArrayList;
import java.util.Scanner;

public class BookManagementSystem {
    private ArrayList<Book> bookList = new ArrayList<Book>();
    private Scanner scanner = new Scanner(System.in);

    // 添加图书
    public void addBook() {
        System.out.println("请输入图书编号：");
        String bookId = scanner.nextLine();
        System.out.println("请输入图书名称：");
        String bookName = scanner.nextLine();
        System.out.println("请输入图书作者：");
        String author = scanner.nextLine();
        System.out.println("请输入图书价格：");
        double price = scanner.nextDouble();
        scanner.nextLine(); // 读取多余的回车符
        Book book = new Book(bookId, bookName, author, price);
        bookList.add(book);
        System.out.println("添加成功！");
    }

    // 查询图书
    public void queryBook() {
        System.out.println("请输入要查询的图书名称：");
        String bookName = scanner.nextLine();
        for (Book book : bookList) {
            if (book.getBookName().equals(bookName)) {
                System.out.println(book);
                return;
            }
        }
        System.out.println("没有找到该图书！");
    }

    // 修改图书
    public void modifyBook() {
        System.out.println("请输入要修改的图书编号：");
        String bookId = scanner.nextLine();
        for (Book book : bookList) {
            if (book.getBookId().equals(bookId)) {
                System.out.println("请输入新的图书名称：");
                String bookName = scanner.nextLine();
                System.out.println("请输入新的图书作者：");
                String author = scanner.nextLine();
                System.out.println("请输入新的图书价格：");
                double price = scanner.nextDouble();
                scanner.nextLine(); // 读取多余的回车符
                book.setBookName(bookName);
                book.setAuthor(author);
                book.setPrice(price);
                System.out.println("修改成功！");
                return;
            }
        }
        System.out.println("没有找到该图书！");
    }

    // 删除图书
    public void deleteBook() {
        System.out.println("请输入要删除的图书编号：");
        String bookId = scanner.nextLine();
        for (int i = 0; i < bookList.size(); i++) {
            if (bookList.get(i).getBookId().equals(bookId)) {
                bookList.remove(i);
                System.out.println("删除成功！");
                return;
            }
        }
        System.out.println("没有找到该图书！");
    }

    // 显示所有图书
    public void displayAllBooks() {
        if (bookList.isEmpty()) {
            System.out.println("图书馆为空！");
            return;
        }
        for (Book book : bookList) {
            System.out.println(book);
        }
    }

    public static void main(String[] args) {
        BookManagementSystem bms = new BookManagementSystem();
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("欢迎使用图书管理系统！");
            System.out.println("1. 添加图书");
            System.out.println("2. 查询图书");
            System.out.println("3. 修改图书");
            System.out.println("4. 删除图书");
            System.out.println("5. 显示所有图书");
            System.out.println("0. 退出系统");
            System.out.println("请选择操作：");
            int choice = scanner.nextInt();
            scanner.nextLine(); // 读取多余的回车符
            switch (choice) {
                case 1:
                    bms.addBook();
                    break;
                case 2:
                    bms.queryBook();
                    break;
                case 3:
                    bms.modifyBook();
                    break;
                case 4:
                    bms.deleteBook();
                    break;
                case 5:
                    bms.displayAllBooks();
                    break;
                case 0:
                    System.out.println("谢谢使用！");
                    System.exit(0);
                default:
                    System.out.println("输入有误，请重新输入！");
            }
        }
    }
}

class Book {
    private String bookId; // 图书编号
    private String bookName; // 图书名称
    private String author; // 作者
    private double price; // 价格

    public Book(String bookId, String bookName, String author, double price) {
        this.bookId = bookId;
        this.bookName = bookName;
        this.author = author;
        this.price = price;
    }

    public String getBookId() {
        return bookId;
    }

    public void setBookId(String bookId) {
        this.bookId = bookId;
    }

    public String getBookName() {
        return bookName;
    }

    public void setBookName(String bookName) {
        this.bookName = bookName;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public double getPrice() {
        return price;
    }

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

    @Override
    public String toString() {
        return "图书编号：" + bookId + "，图书名称：" + bookName + "，作者：" + author + "，价格：" + price;
    }
}

以上为一个简单的图书管理系统的Java实现，可以根据您的需要进行修改和扩展。