图书管理系统代码java

图书管理系统是一个常见的应用程序，主要用于管理图书馆、学校和企业等机构的图书信息。它可以帮助管理员快速准确地查询、添加、修改和删除图书信息，方便读者借阅图书。

Java是一种广泛应用于开发Web应用、桌面应用和移动应用的编程语言。以下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 static ArrayList<Book> bookList = new ArrayList<Book>();

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int choice;
        do {
            System.out.println("1. Add Book");
            System.out.println("2. Remove Book");
            System.out.println("3. Search Book");
            System.out.println("4. Display All Books");
            System.out.println("5. Exit");
            System.out.print("Enter your choice: ");
            choice = input.nextInt();

            switch (choice) {
                case 1:
                    addBook();
                    break;
                case 2:
                    removeBook();
                    break;
                case 3:
                    searchBook();
                    break;
                case 4:
                    displayAllBooks();
                    break;
                case 5:
                    System.out.println("Exiting program...");
                    break;
                default:
                    System.out.println("Invalid choice. Try again.");
            }
        } while (choice != 5);
    }

    private static 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 ISBN: ");
        String isbn = input.nextLine();

        Book book = new Book(title, author, isbn);
        bookList.add(book);

        System.out.println("Book added successfully.");
    }

    private static void removeBook() {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter book ISBN: ");
        String isbn = input.nextLine();

        for (int i = 0; i < bookList.size(); i++) {
            Book book = bookList.get(i);
            if (book.getIsbn().equals(isbn)) {
                bookList.remove(i);
                System.out.println("Book removed successfully.");
                return;
            }
        }

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

    private static void searchBook() {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter book title or author: ");
        String keyword = input.nextLine();

        for (int i = 0; i < bookList.size(); i++) {
            Book book = bookList.get(i);
            if (book.getTitle().contains(keyword) || book.getAuthor().contains(keyword)) {
                System.out.println(book);
            }
        }
    }

    private static void displayAllBooks() {
        for (int i = 0; i < bookList.size(); i++) {
            System.out.println(bookList.get(i));
        }
    }
}

class Book {
    private String title;
    private String author;
    private String isbn;

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

    public String getTitle() {
        return title;
    }

    public String getAuthor() {
        return author;
    }

    public String getIsbn() {
        return isbn;
    }

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

这段代码实现了基本的添加、删除、查询和显示所有图书的功能。您可以根据您自己的需求进行修改和扩展。如果您对这段代码有任何问题或需要更多的帮助，请随时问我。