arrayAndString

实现一个程序，对用户输入的类权限、成员权限、以及使用该类对象的环境与这个类的关系，判断这个环境中能不能访问这个类的这个成员。 4． 背景知识介绍：对类成员的访问权限由3个方面决定：（1）类的访问权限（public或default），（2）成员变量的访问权限（public, protected, default或private），以及环境与类的相互关系（同类SameClass，同包不同类SamePackageNoteSameClass，不同包但为子类OtherPackageSubClass，不同包非子类OtherPackageNotSubClass）。例如，如果一个类A是public的，它的一个成员变量x是protected的，则这个成员变量的访问权限是default的，试图访问这个类的一个运行环境与A的关系是OtherPackageSubClass，则这个环境中能够访问变量x。(Implement a program, the relationship between the classes of permissions, user input member permissions, as well as the environment of use of such objects of this class, it is judged in this environment can not access this members of this class. 4. Background knowledge: the access rights of the class members decided by three aspects: (1) access rights (public or default), (2) the member variable access rights (public, protected, default or private), as well as environmental and the relationship of the class (of similar SameClass, same package different classes SamePackageNoteSameClass, different packages, but for subclass OtherPackageSubClass, different package non-subclass OtherPackageNotSubClass). For example, if a class A is public, it s a member variable x is protected, the access rights of the member variables is default, tries to access a runtime environment for this class A relationship is OtherPackageSubClass this environment be able to access the variable x.)

A connection sub-pool for a specific route, used by {@link ConnPoolByRoute}. The methods in this class are unsynchronized. It is expected that the containing pool takes care of synchronization.

Java call dahua SDK connection camera simple Demo

Access midi and sf2 through java

实现与数据库连接，并返回多值，实现多用户登陆的servlet的一个小案例(Achieved with a small case of the database connection and return value to achieve multi-user login servlet)

说明：  完整的程序源码，完整的系统架构，可供学习及参考，当然也可以作为毕业设计的模版，完全由JSP编写，同时页面由前后台控制。(Complete source code, complete system architecture, for learning and reference, of course, can also be used as a graduation design template, written entirely by JSP, while the page is controlled by the front and back.)

等值线的工具类，其中包括温度、湿度、风速风向等(Tools for contours, including temperature, humidity, wind speed and direction, etc.)

说明：  集成三方百度地图识别功能，快速集成方别快捷。(Integration of three-party Baidu Map Recognition function, fast integration of different fast.)

Struts2和Freemarker的配置说明(Struts2 and Freemarker configuration instructions)

将一个图片进行裁剪成指定大小的图片, 现在很多网站有这个程序来裁剪头像(Cutting a picture into a specified size of image, Now many sites have this procedure to cutting head)