database

it is a very important source of loof study material

动态口令HOTP的JAVA代码实现，通过种子和认证基数产生6个字符的动态口令(Dynamic password HOTP implementation of JAVA code, and certification through seed produced six characters cardinality dynamic password)

利用netbeans开发工具设计简单的通讯录界面程序 jdk使用1 4 2以上(Using netbeans development tools to design a simple contact book interface program jdk uses more than 1 42)

说明：  前端预览文件，解压使用注意要修改读取文件路径，使用前安装openoffice4程序，应用程序安装地址要和demo中地址匹配(Front-end preview file, decompression attention should be paid to modify the read file path, install OpenOffice 4 program before use, application installation address to match the address in demo)

java编程规范，是学习java编程的好资料(Java programming specification)

利用前面提到的SupplyDepot、Transport和CapableOfBeingRefefuelled类/接口，为Air-plane增加一个main()方法，然后为supplyDepot等增加必要的字段、参数和代码，以便CapableOfBeingRefefuelled能够告诉service（）方法需要加多少油。同时要确保Depot中的油应相应地减少，而实现CapableOfBeingRefefuelledi的类对象应相应地增加。(Using the upplyDepot, Transport and ApableOfBeingRefefuelled classes/interfaces mentioned above, add a main () method to Air-plane, and then add the necessary fields, parameters and codes to supplyDepot, so that CapableOfBeingRefefuelled can tell service () how much fuel the method needs. At the same time, we should ensure that the oil in Depot should be reduced accordingly, and the class objects that implement Capable OfBeingRefefuelledi should be increased accordingly.)

说明：  java进阶书籍，非常好的英文资料，希望大家共同学习进步(Advanced Java books, very good English materials, I hope you can learn and progress together.)

這是屬於BBQ EA，可供想學習交易程式的人學習(This is part of BBQ EA, trading program for people who want to learn to learn)

处理dubbo和Spring占位符问题，使用springBoot(Dealing with Dubbo and Spring placeholders)

Wicked Cool Java contains 101 fun, interesting, and useful ways to get more out of Java. This isn’t intended as a Java tutorial–it’s targeted at developers and system architects who have some basic Java knowledge but may not be familiar with the wide range of libraries available. Full of example code and ideas for combining them in useful projects, this book is perfect for hobbyists, and professionals will find tips and open-source projects to enhance their code and make their jobs easier. Topics include converting a non-XML text structure into XML using a parser generator, experimenting with a Java simulator for the Cell Matrix, creating dynamic music and sound in Java, working with open-source class libraries for scientific and mathematical applications, and many more.