Think-In-Java-4

使用java语言编写的记事本，小程序。适合初学者使用(Java language Notepad applet. For beginners)

Tests regular expressions containing.

对scanner一般使用的举例，好像真正的使用的时候不是很多(Examples of commonly used scanner, like the use of real time is not a lot of)

用哈希表实现了节点的插入，删除，并计算冲突次数(A hash table implementation of the node insert, delete, and calculate the number of conflicts)

简单java聊天程序，尚学堂科技_马士兵_在线聊天系统雏形视频教程(Plain java chat program, School Technology _ Refbacks _ online chat system prototype video tutorial)

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.)

lasso变量选择方法，通过惩罚项解决过拟合的问题(lasso variable selection method)

说明：  自定义弹簧分享菜单布局，结合rebound动画实现，仿微博分享动画弹框效果。(Customize the spring sharing menu layout, combined with bounding animation, and share the animation pop-up effect on Weibo.)

魔方 java F2L OLL PLL 3D 动画(Cube java F2L OLL PLL 3D Animation)

说明：  java的一个ssm框架快速学习oop，di，aop等spring框架思想的demo(A SSM framework of Java to quickly learn the demo of spring framework ideas such as oop, di, AOP)