是一个在线考试系统，不过是用的javaSE实现的，有注册登录用户的功能，管理员可对试题进行增删改操作，而考生可选择课程随机出五道题进行考试，该代码可做为简单的学习资料-This is an online examination system, but is used javaSE achieve, the function of a registered user, the administrator can add and delete questions to the operation,