开发一个图书管理系统，实现图书馆的各种管理操作。如图书入库、作废，借书证提供、挂失处理，图书的借出、归还、续借、丢失以及超期处理。s-The development of a library management system, library management operations. Storage such as books, void library card, report the loss of processing, the lending of books, restituti

字符串应用与面向对象程序设计,编写一个Java项目，模拟一次包括老师备课，同学上课，布置作业和做作业的课堂教学过程。作业为判断字符串是否为2-重复串及其他字符串操作内容。-String object oriented application programming, write a Java program, including teacher preparation time simulation, the students in class, assignments and homework