java,class Book {, private String title;, private String author;, private String publisher;,, public Book(String title, String author, String publisher) {, this.title = title;, this.author = author;, this.publisher = publisher;, },, // getter and setter methods,},,class Library {, private List books;,, public Library() {, books = new ArrayList();, },, public void addBook(Book book) {, books.add(book);, },, public void removeBook(Book book) {, books.remove(book);, },, public Book findBookByTitle(String title) {, for (Book book : books) {, if (book.getTitle().equals(title)) {, return book;, }, }, return null;, },},,class User {, private String name;, private Library library;,, public User(String name, Library library) {, this.name = name;, this.library = library;, },, // other methods for user interaction with the system,},,public class Main {, public static void main(String[] args) {, Library library = new Library();, Book book1 = new Book("Java编程思想", "Bruce Eckel", "人民邮电出版社");, library.addBook(book1);,, User user = new User("张三", library);, // implement user interaction with the system, },},
“ 图书管理系统可以使用Java编写,以下是一个简单的示例:
1、创建一个Book类,用于表示图书信息:
public class Book { private String title; private String author; private String isbn; private int price; public Book(String title, String author, String isbn, int price) { this.title = title; this.author = author; this.isbn = isbn; this.price = price; } // getter和setter方法 }
2、创建一个BookManager类,用于管理图书信息:
import java.util.ArrayList; import java.util.List; public class BookManager { private List<Book> books; public BookManager() { books = new ArrayList<>(); } // 添加图书 public void addBook(Book book) { books.add(book); } // 删除图书 public void removeBook(Book book) { books.remove(book); } // 查找图书 public Book findBookByTitle(String title) { for (Book book : books) { if (book.getTitle().equals(title)) { return book; } } return null; } // 显示所有图书 public void displayAllBooks() { for (Book book : books) { System.out.println(book); } } }
3、在主类中创建BookManager对象,并使用它来管理图书:
public class Main { public static void main(String[] args) { BookManager bookManager = new BookManager(); // 添加图书 Book book1 = new Book("Java编程思想", "Bruce Eckel", "9787111213826", 89); Book book2 = new Book("Effective Java", "Joshua Bloch", "9787111543223", 69); bookManager.addBook(book1); bookManager.addBook(book2); // 显示所有图书 bookManager.displayAllBooks(); // 查找图书 Book foundBook = bookManager.findBookByTitle("Java编程思想"); if (foundBook != null) { System.out.println("找到图书:" + foundBook); } else { System.out.println("未找到图书"); } // 删除图书 bookManager.removeBook(book1); bookManager.displayAllBooks(); } }
这个示例展示了如何使用Java创建一个简单的图书管理系统,包括添加、删除、查找和显示图书的功能,你可以根据需要扩展这个示例,例如添加更多的图书属性、实现用户界面等。
最新评论
本站CDN与莫名CDN同款、亚太CDN、速度还不错,值得推荐。
感谢推荐我们公司产品、有什么活动会第一时间公布!
我在用这类站群服务器、还可以. 用很多年了。