平坝网站建设,动态ip建网站,wordpress教程下载,蒙阴建设局网站一个简单的图书管理系统通常包含图书的增加、删除、查询和显示等基本功能。
以下是一个用 Java 编写的简单图书管理系统的示例代码。
import java.util.ArrayList;
import java.util.Scanner;class Book {private String title;private String author;public Book(String tit…一个简单的图书管理系统通常包含图书的增加、删除、查询和显示等基本功能。
以下是一个用 Java 编写的简单图书管理系统的示例代码。
import java.util.ArrayList;
import java.util.Scanner;class Book {private String title;private String author;public Book(String title, String author) {this.title title;this.author author;}public String getTitle() {return title;}public String getAuthor() {return author;}Overridepublic String toString() {return Title: title , Author: author;}
}class Library {private ArrayListBook books;public Library() {this.books new ArrayList();}public void addBook(Book book) {books.add(book);System.out.println(Book added successfully.);}public void removeBook(String title) {for (Book book : books) {if (book.getTitle().equalsIgnoreCase(title)) {books.remove(book);System.out.println(Book removed successfully.);return;}}System.out.println(Book not found.);}public void displayBooks() {if (books.isEmpty()) {System.out.println(No books in the library.);} else {System.out.println(Books in the library:);for (Book book : books) {System.out.println(book);}}}public Book findBook(String title) {for (Book book : books) {if (book.getTitle().equalsIgnoreCase(title)) {return book;}}return null;}
}public class LibraryManagementSystem {public static void main(String[] args) {Library library new Library();Scanner scanner new Scanner(System.in);while (true) {System.out.println(\nLibrary Management System);System.out.println(1. Add Book);System.out.println(2. Remove Book);System.out.println(3. Display Books);System.out.println(4. Find Book);System.out.println(5. Exit);System.out.print(Enter your choice: );int choice scanner.nextInt();scanner.nextLine(); // Consume newlineswitch (choice) {case 1:System.out.print(Enter book title: );String title scanner.nextLine();System.out.print(Enter book author: );String author scanner.nextLine();Book newBook new Book(title, author);library.addBook(newBook);break;case 2:System.out.print(Enter book title to remove: );String titleToRemove scanner.nextLine();library.removeBook(titleToRemove);break;case 3:library.displayBooks();break;case 4:System.out.print(Enter book title to find: );String titleToFind scanner.nextLine();Book foundBook library.findBook(titleToFind);if (foundBook ! null) {System.out.println(Book found: foundBook);} else {System.out.println(Book not found.);}break;case 5:System.out.println(Exiting the program.);System.exit(0);default:System.out.println(Invalid choice. Please enter a valid option.);}}}
}
这个简单的图书管理系统允许用户添加书籍、删除书籍、显示所有书籍以及查找书籍。用户可以通过输入选项的数字来执行相应的操作。这只是一个基本示例实际的系统可能需要更多功能和更复杂的设计。
