名字转化优化版本

设计一个成绩录入程序，通过键盘录入examId（考号，要求全部是数字符号）、name（姓名，要求全部是字母符号）和score（成绩，要求介于0~800）。当输入数据的类型、输入数据的范围出现错误时，使用Java语言定义的异常类和自定义异常类进行处理。(Entry procedures for the design of a performance by keyboard entry examId (candidate number, the number of requests are all symbols), name (name, requirement for a letter symbols) and score (results, request the range of 0 ~ 800). When the type of input data, the scope of input data errors, use the Java language as defined custom exception classes and exception classes for processing.)

说明：  建立快速索引，FastIndex为抽象类，AscFastIndex和DescFastIndex分别为两个实现(Quick Indexing. FastIndex is an abstract class and AscFastIndex and DescFastIndex are two implementations respectively.)

说明：  一个Java的小程序 自己做的学生作业 换代码(A Java applet of the students do their own work-for-code)

实现一个程序，对用户输入的类权限、成员权限、以及使用该类对象的环境与这个类的关系，判断这个环境中能不能访问这个类的这个成员。 4． 背景知识介绍：对类成员的访问权限由3个方面决定：（1）类的访问权限（public或default），（2）成员变量的访问权限（public, protected, default或private），以及环境与类的相互关系（同类SameClass，同包不同类SamePackageNoteSameClass，不同包但为子类OtherPackageSubClass，不同包非子类OtherPackageNotSubClass）。例如，如果一个类A是public的，它的一个成员变量x是protected的，则这个成员变量的访问权限是default的，试图访问这个类的一个运行环境与A的关系是OtherPackageSubClass，则这个环境中能够访问变量x。(Implement a program, the relationship between the classes of permissions, user input member permissions, as well as the environment of use of such objects of this class, it is judged in this environment can not access this members of this class. 4. Background knowledge: the access rights of the class members decided by three aspects: (1) access rights (public or default), (2) the member variable access rights (public, protected, default or private), as well as environmental and the relationship of the class (of similar SameClass, same package different classes SamePackageNoteSameClass, different packages, but for subclass OtherPackageSubClass, different package non-subclass OtherPackageNotSubClass). For example, if a class A is public, it s a member variable x is protected, the access rights of the member variables is default, tries to access a runtime environment for this class A relationship is OtherPackageSubClass this environment be able to access the variable x.)

说明：  idea 的lombcok插件 上行下效寻寻x(lombok plugins in idea)

用JAVA实现简单的定积分，里面有详细说明(use JAVA to realize dingjifen with detailed instruction)

基于MVC模式的网上书店系统。实现了图书的查询，可以将需要的书籍加入购物车进行购买(MVC mode-based online bookstore system. Achieve a query of the books, the books required Add to cart to make a purchase)

asp 信息系统，简单易用。可以产考下学习(asp xinxixitong jiandanyiyong keyichankao)

1 用键盘操作可以控制蛇的移动； 2 蛇只能从蛇头方向移动，不可从相反方向移动（如向上时不能向下）。 3 蛇吃到食物之后自身长度要能够变化；(tanchishe)

基于Java编写的一个记事本工具，能够支持简单的文本编辑与保存，同时实现了一个HTTP下载功能，能够支持HTTP文本下载。(Notepad tool written in Java, can support a simple text editor and save at the same time an HTTP download function to support HTTP text download.)