eoeAndroid-Android-widget-Ver-2.pdf

模拟当当网购物系统，主要是struts2技术，有用户管理，分类浏览，购物车，下订单四个模块。(Analog Dangdang shopping system, mainly struts2 technology, user management, Browse, cart, under the orders of four modules.)

说明：  这是一个计算器小程序，用java applet实现，能够进行加，减，乘，除，四则运算，并且还有音乐。(This is a small calculator program with the java applet to achieve, to carry out addition, subtraction, multiplication, addition, four operations, and there are music.)

this is nice file hey see

Android奇艺高清UI界面源代码，应用程序编程源码，很好的参考资料。(Android Qiyi HD UI interface source code, application programming source code, a good reference.)

基于JSP的仿酷狗网站的实现，已包含jar文件(kugou imitation achieve JSP-based Web site, included jar file)

说明：  大数据大屏展示的DEMO,供参考界面设计及实现。(big data demp, great show!)

脉冲宽度调制是一种模拟控制方式，根据相应载荷的变化来调制晶体管基极或MOS管栅极的偏置，来实现晶体管或MOS管导通时间的改变，从而实现开关稳压电源输出的改变。这种方式能使电源的输出电压在工作条件变化时保持恒定，是利用微处理器的数字信号对模拟电路进行控制的一种非常有效的技术。脉冲宽度调制是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术，广泛应用在从测量、通信到功率控制与变换的许多领域中。(Pulse width modulation (PWM) is an analog control method, which modulates the bias of transistor base or MOS gate according to the change of load, so as to change the turn-on time of transistor or MOS and realize the change of output of switching regulated power supply. This method can keep the output voltage of the power supply constant when the working conditions change. It is a very effective technology to control the analog circuit by using the digital signal of the microprocessor. Pulse width modulation (PWM) is a very effective technology to control analog circuits by using the digital output of microprocessors. It is widely used in many fields, from measurement, communication to power control and conversion.)

Java编程精选集锦，拥有诸多案例供您学习-Java Programming Highlights Highlights

用最新的百度API写的关于地图的例子，很有启迪意义，有需要的可以研究一下(Write on the map with the latest Baidu API examples, very instructive, need to study)

An exception that indicates that garbage-collector is finalizing a database object that is not explicitly closed.