jdbc_02

java注册系统级别的快捷键（hotkey）(java registration system level shortcut (hotkey))

BoneCP 是一个高性能的开源java数据库连接池实现库。它的设计初衷就是为了提高数据库连接池的性能，根据某些测试数据发现，BoneCP是最快的连接池。BoneCP很小，只有四十几K（运行时需要slf4j和guava的支持，这二者加起来就不小了），而相比之下 C3P0 要六百多K。(BoneCP is a high-performance open source java database connection pool implementation library. It' s designed to improve the performance of the database connection pool, according to some test data found, BoneCP fastest connection pool. The BoneCP small four dozen K (run-time support for slf4j and guava, both of which add up to not less), contrast C3P0 over six hundred K.)

java 连接阿里云的mqtt服务(客户端源码)

DirectByteBuffer extends BaseByteBuffer implements DirectBuffer.

在Eclipse开发环境下，可以直接导入，导入之后可以依据自己的情况，改变音量调节的大小，同时还可以自行设计音量进度条的显示方式(In the Eclipse development environment, you can directly import, after import can be based on their own circumstances, to change the size of the volume control, but also can design their own volume progress bar is displayed)

说明：  人事管理系统，专门做人事管理，增删改查人员信息，账号绑定(Personnel management system, specializing in personnel management, adding, deleting and modifying personnel information, account binding)

JFreeChart它主要是用来制作各种各样的图表，这些图表包括：饼图、柱状图(普通柱状图以及堆栈柱状图)、线图、区域图、分布图、混合图、甘特图以及一些仪表盘等等。(JfreeChart it is primarily used to produce a wide variety of charts, graphs include : pie histogram (histogram and ordinary stack histogram), maps, regional maps, maps, maps mixed, Gantt Chart and some dashboard, and so on.)

1D的薛定谔－泊松自洽求解 用于模拟半导体器件中的电势 电场等特性(1D Schrodinger- Poisson self-consistent solution )

说明：  (4)结果映射：将操作数据库的结果按照映射的配置进行转换，可以转换成HashMap、JavaBean或者基本数据类型，并将最终结果返回(result mapping: transform the result of the operation database according to the configuration of the mapping, which can be converted into HashMap, JavaBean or basic data type, and return the final result)

java swing testes buttons and text