用Java语言写一个图书管理系统

好的，我可以为您提供一些Java代码来实现一个图书管理系统。这个系统可以存储图书的信息，例如书名、作者、ISBN号等，并提供搜索、增加、删除、修改图书信息的功能。

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

class Book {
    private String name;
    private String author;
    private String ISBN;

    public Book(String name, String author, String ISBN) {
        this.name = name;
        this.author = author;
        this.ISBN = ISBN;
    }

    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 String getISBN() {
        return ISBN;
    }

    public void setISBN(String ISBN) {
        this.ISBN = ISBN;
    }
}

public class BookSystem {
    private ArrayList<Book> books = new ArrayList<>();

    public void addBook(Book book) {
        books.add(book);
    }

    public void deleteBook(String ISBN) {
        for (int i = 0; i < books.size(); i++) {
            if (books.get(i).getISBN().equals(ISBN)) {
                books.remove(i);
                break;
            }
        }
    }

    public void updateBook(String ISBN, Book book) {
        for (int i = 0; i < books.size(); i++) {
            if (books.get(i).getISBN().equals(ISBN)) {
                books.set(i, book);
                break;
            }
        }
    }

    public void searchBook(String ISBN) {
        for (int i = 0; i < books.size(); i++) {
            if (books.get(i).getISBN().equals(ISBN)) {
                System.out.println("书名: " + books.get(i).getName());
                System.out.println("作者: " + books.get(i).getAuthor());
                System.out.println("ISBN: " + books.get(i).getISBN());
                break;
            }
        }
    }

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        BookSystem bookSystem = new BookSystem();

        while (true) {
            System.out.println("请选择操作:");
            System.out.println("1. 增