java串口发送短信

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

适合初学者学习，需要的可以下载看看！ 非常好的算法和程序，(Very good algorithm and program, suitable for beginners to learn, need to download to see.)

修改实验7中定义的Rectangle类，使之拥有两个构造方法。其中一个是默认的，它使两点的坐标都为（0，0） 另一个带有4个参数，求出左上角和右下角点坐标为（2.1，3.2）、（5.2，6.3）的矩形的周长及面积，再利用带参数的构造方法创建Rectangle对象，求出左上角和右下角点坐标为（1，2）、（6.8，10.5）的矩形的周长及面积.(Modify the definition of experiment 7 Rectangle class, so that it has two constructors. One is the default, it makes two points of the coordinate of (0,0) the other with four parameters, find the upper left and lower right corner coordinates (2.1,3.2), (5.2,6.3) and perimeter and area of ​ ​ a rectangle, and then use a parameterized constructor method to create a Rectangle object, find the upper left and lower right corner coordinates (1,2), (6.8,10.5) rectangle of perimeter and area.)

text book on java ...generally it is too hard to find a good book but this makes things easier

FileInputReader接收键盘输入的字符串，用FileWirter类将字符串写入文件，用FileReader类读出文件内容显示在屏幕上。(FileInputReader receives the keyboard input string, writes the string to the file with the FileWirter class, reads the document content with the FileReader class, displays in the screen.)

关于JMX的入门资料，代码展示了一些JMX的基础知识(Introductory information about JMX, JMX code shows some of the basics)

这个例子主要针对初学者，对viewpager的扩展用法，一目了然。(This example is mainly for beginners, the expansion of the use of viewpager, at a glance.)

javaweb博客 可以直接运行的哦！！！！(javaweb blog)

说明：  实现基于redis的bloomFilter(the implements of bloomfilter based on redis)

Java环境变量设置，帮助设置您的Java环境(Setting Java environment variables)