用Java代码编写一个无图形界面的图书管理系统

好的，以下是一个简单的无图形界面的图书管理系统的Java代码：

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

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

    public static void main(String[] args) {
        System.out.println("欢迎使用图书管理系统！");
        while (true) {
            System.out.println("请选择您需要的操作：");
            System.out.println("1. 添加图书");
            System.out.println("2. 删除图书");
            System.out.println("3. 查找图书");
            System.out.println("4. 显示所有图书");
            System.out.println("5. 退出系统");

            int choice = scanner.nextInt();
            switch (choice) {
                case 1:
                    addBook();
                    break;
                case 2:
                    deleteBook();
                    break;
                case 3:
                    searchBook();
                    break;
                case 4:
                    displayBooks();
                    break;
                case 5:
                    System.out.println("感谢使用图书管理系统！");
                    System.exit(0);
                    break;
                default:
                    System.out.println("输入有误，请重新选择！");
                    break;
            }
        }
    }

    // 添加图书
    private static void addBook() {
        System.out.println("请输入图书编号：");
        String id = scanner.next();
        System.out.println("请输入图书名称：");
        String name = scanner.next();
        System.out.println("请输入图书作者：");
        String author = scanner.next();
        System.out.println("请输入图书价格：");
        double price = scanner.nextDouble();
        Book book = new Book(id, name, author, price);
        bookList.add(book);
        System.out.println("添加成功！");
    }

    // 删除图书
    private static void deleteBook() {
        System.out.println("请输入要删除的图书编号：");
        String id = scanner.next();
        for (int i = 0; i < bookList.size(); i++) {
            if (bookList.get(i).getId().equals(id)) {
                bookList.remove(i);
                System.out.println("删除成功！");
                return;
            }
        }
        System.out.println("未找到该图书编号！");
    }

    // 查找图书
    private static void searchBook() {
        System.out.println("请输入要查找的图书编号：");
        String id = scanner.next();
        for (Book book : bookList) {
            if (book.getId().equals(id)) {
                System.out.println(book);
                return;
            }
        }
        System.out.println("未找到该图书编号！");
    }

    // 显示所有图书
    private static void displayBooks() {
        for (Book book : bookList) {
            System.out.println(book);
        }
    }
}

class Book {
    private String id;
    private String name;
    private String author;
    private double price;

    public Book(String id, String name, String author, double price) {
        this.id = id;
        this.name = name;
        this.author = author;
        this.price = price;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    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：" + id + "，图书名称：" + name + "，图书作者：" + author + "，图书价格：" + price;
    }
}

这个图书管理系统可以执行以下功能：

1. 添加图书
2. 删除图书
3. 查找图书
4. 显示所有图书
5. 退出系统

您可以根据自己的需求对代码进行修改和扩展。