L1_helloworld

Tests that when Geolocation permission is denied, watches are stopped, as well as one-shots.

吃货系统。点菜查看菜单，结账，点赞评论等各种功能(Eating system. Ordering menu, checkout, comment and other functions)

说明：  都不知道写啥，用java代码编写程序发送指定邮件(Using java code to write program to send specified mail)

We produced a software for scientists and managers working with marinas, and small harbor. Our software is able to predict the distribution of portuality and vulnerability risk.

Hibernate运行Demo，详细讲解启动配置文件Hibernate.cfg如何编写，包括SessionFactory里的数据源如何配置(Hibernate Run Demo, explain in detail how the startup configuration file Hibernate.cfg preparation, including SessionFactory in how to configure data sources)

说明：  1. 能够实现根据以下关键字查询：学生姓名 、学号、班级、课程名称。 2. 能够实现按照单科成绩、总成绩、平均成绩、学号排序。 3. 能够实现学生信息的插入、删除和修改。 4. 能够查询每个课程的最高分、最低分及相应学生姓名、班级和学号。 5. 能够查询每个班级某门课程的优秀率(90 分及以上)、不及格率，并进行排序。(1. Be able to query according to the following keywords: student name, student number, class, course name. 2. It can be sorted according to single subject score, total score, average score and student number. 3. Be able to insert, delete and modify student information. 4. Be able to query the highest score and lowest score of each course and the corresponding student name, class and student number. 5. Be able to query the excellent rate (90 points and above) and failure rate of a course in each class, and sort them.)

Q学习算法实例，这算法主要应用于机器人领域，运用此算法进行行动的选择使Q值最大最后找到最优的策略(Q-learning algorithm is applied in robot domain，example robot-hitting， robot-moving and so on。This paper refers to many robots domain 。It is so useful。 )

check the url link whether it is good or bad link

银行的一个管理系统，在ATM端服务，并有异常处理(A bank management system, client services in the ATM)

java模拟时钟，可在换数字时钟和模拟时钟之间切换(java analog clock, switch between change digital clock and analog clock)