计算器

idea maven ssh ,含数据库脚本

使用Java语言开发的一个串口调试助手，测试基本没有问题。虽然经过多次修改，但功能还没有完善，可能还存在一些小问题。现在共享给大家，以供想要学习Java串口应用开发的朋友参考。若发现代码有错误之处，还望能够提出改正，大家共同学习，共同进步。有兴趣的朋友也可以在此基础上完善软件的功能。

【实例简介】 http://127.0.0.1:8989/lab/login_indexs.do admin 123456 js 123456 xs 123456

Netty 提供异步的、事件驱动的网络应用程序框架和工具,用以快速开发高性能、高可靠性的网络服务器和客户端程序。

【实例简介】控制台输出，简陋，大佬轻点喷！

活动选项卡

【实例简介】

Java continues to grow and evolve, and this Cookbook continues to evolve in tandem. This book helps to get you up to speed right away with hundreds of hands-on recipes across a broad range of Java topics. You’ll learn useful techniques for everything from string handling and functional programming to network communication.Each recipe includes self-contained code solutions that you can freely use, along with a discussion of how and why they work. If you are familiar with the basics of the Java language, this cookbook will bolster your knowledge of the language in general and its many recent changes and how to apply them in your day-to-day development.Recipes include:Methods for compiling, running, and debugging“Packaging” Java classes and building applicationsManipulating, comparing, and rearranging textRegular expressions for string- and pattern-matchingHandling numbers, dates, and timesStructuring data with collections, arrays, and other typesObject-oriented and functional programming techniquesInput/Output, Directory and filesystem operationsNetwork programming on both client and serverProcessing JSON for data interchangeMultithreading and concurrencyUsing Java in Big Data applicationsInterfacing Java with other languages------------------The 4th Edition of this book has been updated to cover changes through Java 12 and includes new recipes for Big Data and data science.

【实例简介】实现文件的上传、下载（分别通过本地、第三方网站进行实现 qq：821928227获取视频教程），读取、附带讲义、源码

基于JAVA实现的消息推送系统，CIM(CROSS-IM) 一款面向开发者的 IM(即时通讯)系统；同时提供了一些组件帮助开发者构建一款属于自己可水平扩展的 IM