java制作简单图书馆 无界面

import java.util.*; public class Admin { Bookshelf bookshelf=new Bookshelf(); Scanner read=new Scanner(System.in); public void addbook() { System.out.println("请输入要添加的书名"); String book=read.next(); bookshelf.addbook(book); } public void removebook() { System.out.println("请输入要删除的书名"); String book=read.next(); bookshelf.removebook(book); } public void lendbook(String book) { bookshelf.downbook(book); System.out.println("已成功借阅图书"); } public void backbook(String book) { bookshelf.upbook(book); System.out.println(book+" 还书成功"); } }