student

实现与数据库连接，并返回多值，实现多用户登陆的servlet的一个小案例(Achieved with a small case of the database connection and return value to achieve multi-user login servlet)

列车购票系统，列车员，用户，购票查询增删改等功能(Train ticketing systems, conductor, users, ticket inquiries CRUD functions)

说明：  实现扑克牌，一副牌中抽去大小王剩下52张（如果初练也可只用1～10这40张牌)，任意抽取4张牌（称牌组)，用加、减、乘、除（可加括号)把牌面上的数算成24。每张牌必须用一次且只能用一次，如抽出的牌是3、8、8、9，那么算式为（9-8)×8×3或3×8+（9-8)或（9- 8÷8)×3等。(In order to realize playing cards, 52 cards are removed from a deck (only 40 cards can be used for the first practice). Four cards are randomly selected (called card groups). The number on the deck is calculated as 24 by adding, subtracting, multiplying and dividing (brackets can be added). Each card must be used once and only once. If the drawn card is 3, 8, 8, 9, the formula is (9-8)*8*3 or 3*8+ (9-8) or (9-8 8)*3)

说明：  用写的Java媒体播放器. (Java Media Player.)

A partial implementation of the MessageLite interface which implements as many methods of that interface as possible in terms of other methods for Andriod.

说明：  GN算法是一种经典的web社区发现算法，java语言。可用实例验证(the GN algorithm is a kind of classic web community discovery algorithm )

google的一道JAVA面试题，有人用c写了一个，得出这些结果只用了几十毫秒！ 　　有更好思路的可以讨论讨论。(google for a JAVA face questions, someone wrote a c obtained these results only dozens of milliseconds! Have a better idea of the discussion can be discussed.)

雇员java学习题目，大学java初学者实验(Employee java learning topics)

基于动态规划算法，用java实现的自动对联程序(Automatically couplet procedures based on dynamic programming algorithm, implemented in Java)

Test debug event for constructor.