java小型图书管理系统

好的，下面是一个简单的Java小型图书管理系统的实现：

首先，需要创建一个Book类来表示图书。这个类应该包括图书的属性，如书名、作者、出版社、出版时间、价格等。

public class Book {
    private String title;
    private String author;
    private String publisher;
    private String publishDate;
    private double price;

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

    // Getters and setters for the book properties
    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getPublisher() {
        return publisher;
    }

    public void setPublisher(String publisher) {
        this.publisher = publisher;
    }

    public String getPublishDate() {
        return publishDate;
    }

    public void setPublishDate(String publishDate) {
        this.publishDate = publishDate;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }
}

接下来，我们需要创建一个BookManager类来实现图书管理系统的功能，如添加图书、删除图书、查找图书等。

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

public class BookManager {
    private ArrayList<Book> bookList;

    public BookManager() {
        this.bookList = new ArrayList<Book>();
    }

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

    public void removeBook(int index) {
        bookList.remove(index);
    }

    public void searchBook(String keyword) {
        boolean found = false;
        for (Book book : bookList) {
            if (book.getTitle().contains(keyword) || book.getAuthor().contains(keyword)) {
                System.out.println(book.getTitle() + " by " + book.getAuthor());
                found = true;
            }
        }
        if (!found) {
            System.out.println("No books found with keyword " + keyword);
        }
    }

    public void displayBooks() {
        for (int i = 0; i < bookList.size(); i++) {
            Book book = bookList.get(i);
            System.out.println((i + 1) + ". " + book.getTitle() + " by " + book.getAuthor());
        }
    }

    public static void main(String[] args) {
        BookManager manager = new BookManager();
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("Enter 1 to add a book");
            System.out.println("Enter 2 to remove a book");
            System.out.println("Enter 3 to search for a book");
            System.out.println("Enter 4 to display all books");
            System.out.println("Enter 0 to exit");
            int choice = scanner.nextInt();
            scanner.nextLine(); // Consume the newline character
            switch (choice) {
                case 0:
                    System.exit(0);
                case 1:
                    System.out.print("Enter book title: ");
                    String title = scanner.nextLine();
                    System.out.print("Enter book author: ");
                    String author = scanner.nextLine();
                    System.out.print("Enter book publisher: ");
                    String publisher = scanner.nextLine();
                    System.out.print("Enter book publish date: ");
                    String publishDate = scanner.nextLine();
                    System.out.print("Enter book price: ");
                    double price = scanner.nextDouble();
                    scanner.nextLine(); // Consume the newline character
                    Book book = new Book(title, author, publisher, publishDate, price);
                    manager.addBook(book);
                    System.out.println("Book added successfully!");
                    break;
                case 2:
                    System.out.print("Enter book index to remove: ");
                    int index = scanner.nextInt();
                    scanner.nextLine(); // Consume the newline character
                    manager.removeBook(index - 1);
                    System.out.println("Book removed successfully!");
                    break;
                case 3:
                    System.out.print("Enter search keyword: ");
                    String keyword = scanner.nextLine();
                    manager.searchBook(keyword);
                    break;
                case 4:
                    manager.displayBooks();
                    break;
                default:
                    System.out.println("Invalid choice!");
            }
            System.out.println();
        }
    }
}

这个图书管理系统具有添加图书、删除图书、查找图书和显示所有图书的功能。在程序运行时，用户可以输入数字选择要执行的操作。具体的操作流程如下：

1. 添加图书：用户输入书名、作者、出版社、出版时间和价格等信息，程序将这些信息存储到一个Book对象中，并添加到bookList中。
2. 删除图书：用户输入要删除的图书的序号，程序将这个图书从bookList中删除。
3. 查找图书：用户输入一个关键字，程序将遍历bookList，查找所有包含这个关键字的图书，并将它们的标题和作者打印到屏幕上。
4. 显示所有图书：程序将遍历bookList，打印每本书的标题和作者。

这个小型图书管理系统只是一个粗略的实现，还有很多需要完善和改进的地方。例如，可以添加更多的图书属性、改进搜索功能、实现保存和读取图书列表等。