StringUtil

用java编的简单的计算器，虽然简单却实用。具有图形化界面(Java made using a simple calculator, although simple but practical. With a graphical interface)

说明：  这是我学习cloudsim用到的讲解，对我帮助很大(This is the explanation I used to learn cloudsim, and it helped me a lot.)

D星算法及图示，Dstar with kinodynamic constraints and visualization functionality using Java (Dstar algorithm， Dstar with kinodynamic constraints and visualization functionality using Java )

说明：  在空间数据编码练习题的基础上实现 1、名字的左斜变换 2、名字的耸肩变换 3、名字的比例变换 4、名字的旋转变换 5、名字的对称变换 6、名字的平移变换——-优化版本，可直接使用。((On the basis of spatial data coding exercises 1, the left oblique transformation of the name 2, the shrug transformation of the name 3, the proportion transformation of names 4, the rotation transformation of the name 5, the symmetric transformation of the name 6. Translation of names))

JAVA入门到精通，这是一部为java初学者和爱好者编辑的书本(JAVA From entry to mastery)

Email protocols on the internet Post Office Protocol version 3 (POP3) is a standard mail protocol used to receive emails a remote server to a local email client.- POP3

说明：  实现POSTEK打印机的java通讯,可配置格式(Realize the communication of Postek printer)

java串口调试程序 1.波特率 2.数据位 3.停止位 4.校验位 (java serial debugger 1. baud rate 2. data bit 3. stop bit 4. parity bit)

安卓上的蓝牙串口助手，包含源代码，可以和单片夹等其他的设备相连。(Bluetooth serial port on Andrews assistant, including source code, and other devices can be connected to single folders.)

说明：  简易的实现了管理员登录，查询，管理的功能(Simple realization of administrator login, query, management functions)