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GB28181-2011T 安全防范视频监控联网系统信息传输、交换、控制技术要求(GB SAFE VIDEO)

If the user has a lock pattern set already, makes them confirm the existing one.

说明：  java AES 和 DES加密解密工具类(Java AES and DES Encryption and Decryption Tool Class)

Java万年历系统，带有记事本功能，界面友好，代码注释详细，适合初学者借鉴学习。(The Calendar with NotePad。)

Java Database Best Practices

interface定义了一组行为的协议。两个对象之间通过这个协议进行通信。 interface 不属于类层次结构。不相关的类可以实现相同的接口(interface defines a set of conduct agreement. Through this agreement between the two objects to communicate. interface does not belong to class hierarchy. Unrelated classes can implement the same interface)

一种蓝牙定位的java程序，功能完善，实现质心定位，三边定位和最小二乘算法，通过布置蓝牙的位置，定位精度在0.5M左右(A bluetooth positioning Java program, the function is perfect, realize the centroid localization, trilateral positioning and least squares algorithm, through the arrangement of the position of the bluetooth, positioning accuracy at about 0.5 M)

编写一个Java程序，设计一个运输工具类Transport，包含的成员属性有：速度pace、载重量load；汽车类Vehicle是Transport的子类，其中包含的属性有：车轮的个数wheels和车重weight；飞机Airplane类是Transport的子类其中包含的属性有：机型enginertype和发动机数量enginers。每个类都有相关所有数据的输出方法。(Write a Java program, designing a means of transport category Transport, including members of the attributes: speed pace, load load Automotive Transport Vehicle is a subclass, which contains the attributes: the number of wheels and wheel weight weight Transport Aircraft Airplane class is a subclass of which contains the attributes: the number of aircraft and engine enginertype enginers. Each class has all data related to the output method.)

用于网页上表格内容排序，点击列的名称，可以对该列进行排序(Used to form the content of web pages to sort, click column name, you can sort the list)

说明：  jdbc作业有助于学习java功能里面的jdbc模块1111111(DBC job helps to learn JDBC module 1111111 in Java function)