用java写一份图书管理系统

好的，下面是一个简单的图书管理系统的Java代码示例。

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

public class BookManagementSystem {
    private ArrayList<Book> bookList;

    public BookManagementSystem() {
        bookList = new ArrayList<Book>();
    }

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

    public Book findBook(String title) {
        for (Book book : bookList) {
            if (book.getTitle().equals(title)) {
                return book;
            }
        }
        return null;
    }

    public ArrayList<Book> getBookList() {
        return bookList;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        BookManagementSystem bookManagementSystem = new BookManagementSystem();

        while (true) {
            System.out.println("请选择操作：");
            System.out.println("1.添加图书");
            System.out.println("2.查找图书");
            System.out.println("3.退出");

            int choice = scanner.nextInt();

            if (choice == 1) {
                System.out.println("请输入图书的标题和作者：");
                String title = scanner.next();
                String author = scanner.next();
                Book book = new Book(title, author);
                bookManagementSystem.addBook(book);
                System.out.println("添加成功！");
            } else if (choice == 2) {
                System.out.println("请输入要查找的图书的标题：");
                String title = scanner.next();
                Book book = bookManagementSystem.findBook(title);
                if (book == null) {
                    System.out.println("未找到该图书！");
                } else {
                    System.out.println(book);
                }
            } else if (choice == 3) {
                System.out.println("感谢使用图书管理系统！");
                break;
            } else {
                System.out.println("输入错误，请重新输入！");
            }
        }
    }
}

class Book {
    private String title;
    private String author;

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

    public String getTitle() {
        return title;
    }

    public String getAuthor() {
        return author;
    }

    public String toString() {
        return "《" + title + "》 作者：" + author;
    }
}

该程序实现了基本的图书管理功能，包括添加图书和查找图书。用户可以通过控制台输入来进行操作。需要注意的是，该示例只是一个简单的示例，实际应用中可能需要更加完善的功能和界面设计。