帮我用Java写一个简单的图书管理系统

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;
    private int bookCount;

    public BookManagementSystem() {
        bookList = new ArrayList<>();
        bookCount = 0;
    }

    public void addBook() {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter book title: ");
        String title = input.nextLine();

        System.out.print("Enter book author: ");
        String author = input.nextLine();

        System.out.print("Enter book price: ");
        double price = input.nextDouble();

        Book book = new Book(title, author, price);
        bookList.add(book);
        bookCount++;
        System.out.println("Book added successfully!");
        input.nextLine();
    }

    public void displayBooks() {
        if (bookCount == 0) {
            System.out.println("No books to display!");
        } else {
            System.out.println("List of books:");
            for (Book book : bookList) {
                System.out.println(book);
            }
        }
    }

    public void searchBook() {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter book title to search: ");
        String title = input.nextLine();

        boolean found = false;
        for (Book book : bookList) {
            if (book.getTitle().equals(title)) {
                System.out.println(book);
                found = true;
                break;
            }
        }

        if (!found) {
            System.out.println("Book not found!");
        }
    }

    public void deleteBook() {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter book title to delete: ");
        String title = input.nextLine();

        boolean found = false;
        for (Book book : bookList) {
            if (book.getTitle().equals(title)) {
                bookList.remove(book);
                bookCount--;
                System.out.println("Book deleted successfully!");
                found = true;
                break;
            }
        }

        if (!found) {
            System.out.println("Book not found!");
        }
    }

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

        int choice = 0;
        do {
            System.out.println("1. Add book");
            System.out.println("2. Display books");
            System.out.println("3. Search book");
            System.out.println("4. Delete book");
            System.out.println("5. Exit");
            System.out.print("Enter your choice: ");
            choice = input.nextInt();

            switch (choice) {
                case 1:
                    bms.addBook();
                    break;
                case 2:
                    bms.displayBooks();
                    break;
                case 3:
                    bms.searchBook();
                    break;
                case 4:
                    bms.deleteBook();
                    break;
                case 5:
                    System.out.println("Goodbye!");
                    break;
                default:
                    System.out.println("Invalid choice!");
            }
        } while (choice != 5);
    }
}

class Book {
    private String title;
    private String author;
    private double price;

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

    public String getTitle() {
        return title;
    }

    public String getAuthor() {
        return author;
    }

    public double getPrice() {
        return price;
    }

    public String toString() {
        return "Title: " + title + ", Author: " + author + ", Price: " + price;
    }
}

这个程序实现了一个简单的图书管理系统，可以添加、显示、搜索和删除图书信息。你可以根据自己的需要进行修改和扩展。