java课程设计图书管理系统代码

Java课程设计中的图书管理系统，是一个常见的小型项目，主要功能是实现对图书信息的管理。一般需要包含以下模块：图书信息管理模块、借阅管理模块、归还管理模块、用户管理模块等。

下面是一个简单的Java图书管理系统的代码示例，供参考：

import java.util.Scanner;

public class BookManagementSystem {
    private Book[] books;
    private int size;

    public BookManagementSystem(int capacity) {
        books = new Book[capacity];
        size = 0;
    }

    public void addBook(Book book) {
        if (size == books.length) {
            System.out.println("The bookshelf is full!");
            return;
        }
        books[size] = book;
        size++;
    }

    public void removeBook(String bookName) {
        for (int i = 0; i < size; i++) {
            if (books[i].getName().equals(bookName)) {
                for (int j = i; j < size - 1; j++) {
                    books[j] = books[j + 1];
                }
                books[size - 1] = null;
                size--;
                System.out.println("Successfully removed book: " + bookName);
                return;
            }
        }
        System.out.println("The book " + bookName + " is not found!");
    }

    public void borrowBook(String bookName) {
        for (int i = 0; i < size; i++) {
            if (books[i].getName().equals(bookName)) {
                if (books[i].isBorrowed()) {
                    System.out.println("The book " + bookName + " is already borrowed!");
                } else {
                    books[i].setBorrowed(true);
                    System.out.println("Successfully borrowed book: " + bookName);
                }
                return;
            }
        }
        System.out.println("The book " + bookName + " is not found!");
    }

    public void returnBook(String bookName) {
        for (int i = 0; i < size; i++) {
            if (books[i].getName().equals(bookName)) {
                if (!books[i].isBorrowed()) {
                    System.out.println("The book " + bookName + " is not borrowed yet!");
                } else {
                    books[i].setBorrowed(false);
                    System.out.println("Successfully returned book: " + bookName);
                }
                return;
            }
        }
        System.out.println("The book " + bookName + " is not found!");
    }

    public void listBooks() {
        if (size == 0) {
            System.out.println("The bookshelf is empty!");
            return;
        }
        System.out.println("Book List:");
        for (int i = 0; i < size; i++) {
            System.out.println(books[i]);
        }
    }

    public static void main(String[] args) {
        BookManagementSystem bms = new BookManagementSystem(10);
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("\nMenu:");
            System.out.println("1. Add a book");
            System.out.println("2. Remove a book");
            System.out.println("3. Borrow a book");
            System.out.println("4. Return a book");
            System.out.println("5. List all books");
            System.out.println("6. Exit");
            System.out.print("Please enter your choice: ");
            int choice = scanner.nextInt();
            switch (choice) {
                case 1:
                    System.out.print("Please enter the book name: ");
                    String name = scanner.next();
                    System.out.print("Please enter the author name: ");
                    String author = scanner.next();
                    bms.addBook(new Book(name, author));
                    break;
                case 2:
                    System.out.print("Please enter the book name: ");
                    String removeBookName = scanner.next();
                    bms.removeBook(removeBookName);
                    break;
                case 3:
                    System.out.print("Please enter the book name: ");
                    String borrowBookName = scanner.next();
                    bms.borrowBook(borrowBookName);
                    break;
                case 4:
                    System.out.print("Please enter the book name: ");
                    String returnBookName = scanner.next();
                    bms.returnBook(returnBookName);
                    break;
                case 5:
                    bms.listBooks();
                    break;
                case 6:
                    scanner.close();
                    System.exit(0);
                    break;
                default:
                    System.out.println("Invalid choice!");
                    break;
            }
        }
    }
}

class Book {
    private String name;
    private String author;
    private boolean borrowed;

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

    public String getName() {
        return name;
    }

    public String getAuthor() {
        return author;
    }

    public boolean isBorrowed() {
        return borrowed;
    }

    public void setBorrowed(boolean borrowed) {
        this.borrowed = borrowed;
    }

    @Override
    public String toString() {
        return "Book{" +
                "name='" + name + '\'' +
                ", author='" + author + '\'' +
                ", borrowed=" + borrowed +
                '}';
    }
}