Reflection

一个简单的计算器实现，带小数的加减乘除。使用Java AWT/Swing实现(Implement a simple calculator, decimal addition and subtraction)

本文档内容包括：数据库说明，运行环境，配置文件编辑说明，及其运行方法首先，建目录名称为jsonToMysql1、数据库说明如果没有mysql数据库，需要安装，mysql数据库建表语句见目录sql下的sql文件2、运行环境需要java jdk运行环境，如果没有需要安装，并配置。3、配置文件编辑说明数据库链接、ws接口配置连接、定时器时间间隔（分钟）、数据库链接及其用户密码，定时器开关等配置在config/properties文件夹下的datasource.properties文件中4、运行方法所有的安装配置完成后，运行根目录下的run.bat，双击它就行。

计算机网络，模拟路由器间路由选择的距离向量算法（DV）的程序，纯JAVA实现。(Computer networks, mock router routing algorithm distance vector (DV) program, pure JAVA implementation.)

国密算法SM2算法实现和Demo,主要是帮助大家编写SM2程序(Implementation of SM2 algorithm and Demo)

说明：  采用Spring、SpringMVC、Mybatis、Shiro，前端采用adminLTE、vue.js、bootstrap-table、tree-grid、layer(Spring, Spring MVC, Mybatis, Shiro, adminLTE, vue. js, bootstrap-table, tree-grid, layer are used in the front end.)

BlogJava上不少朋友是做网管系统的。一个典型的网络管理系统，需要具备FCAPS几个标准模块，而网络的自动发现和拓扑展示是核心之一。很多人不喜欢Java的Swing，而本文就用一个很小很小的例子，来模拟一个小小的网络管理程序，希望能给大家一点启发。虽然很小，它却可以完成一个简单的局域网自动发现搜索、多线程、ICMP和SNMP的ping、节点的生成、拓扑的展示、自动布局等功能。继续改巴改巴也许还有点使用价值也未可知。 如果不喜欢研究代码，就当它是一个趣味程序吧！你可以在公司的网络里面搜索一把，把同事的机器都挖出来，看看你们公司的网络结构是怎样的；如果喜欢研究代码，可以看看相关SNMP、多线程和拓扑图展示的部分，虽然很简单，就当看肥皂剧消遣了。(BlogJava on many of my friends are doing the NMS. A typical NMS, requires the FCAPS several standard modules, network auto-discovery and topology display is one of the core. A lot of people do not like the Java Swing, this paper with a very, very small example, to simulate a small network management program, to give everyone a little inspiration. Despite its small size, it can complete a simple local area network auto-discovery search, multi-threaded, ICMP and SNMP ping node generated topology display, automatic layout function. Continue to change the bar to change the bar perhaps point value in use is also unknown. If you do not like to study the code, when it is a fun program! Inside the company network, you can search for a colleague machines dug up to see what your company s network structure research code if you like, you can take a look at the relevant SNMP, multi-threaded and topology diagram shows part Although very simple, when watching a soap opera entertainment.)

java api文档 中文版的 适合刚入门的 编程时可查阅相关内容(The Chinese version of the Java API document can be consulted when programming for beginners)

Java监视内存使用情况，运行Java 程序一般要消耗大量的内存，这曾经是java 的一个致命弱点。当然随着硬件的飞速发展，这个缺点有所弱化，同时java 虚拟机的逐渐成熟，也使内存的消耗量减少。那么一个较小java 程序 　　究竟要消耗多少内存呢？本例将实现一个能自我监视内存使用的简单程序，来评估java 程序的内存消耗情况。(Java monitor memory usage, run Java programs generally consume large amounts of memory, which used to be a fatal weakness of java. Of course, with the rapid development of hardware, this shortcoming has been weakened, while mature java virtual machine, but also to reduce memory consumption. Then a small java program How to consume much memory? This example of a simple program memory can be used for self-monitoring to assess memory consumption java program.)

这个也是java上课用的程序,适合于初学者,建议初学者下载看,()

Tests of basic UI logic in the AccountSetupOptions screen for Andriod.