cdc

This is a Libjitsi Library.

java swing 实现画板功能 绘画 修改 截屏 保存 浏览保存的信息(this is a drawPanel. java swing you can draw by it .)

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.)

实现类似Windows操作系统“计算器”的功能。可以完成任意的通常借助手持计算器来完成的标准运算。“计算器”可用于基本的算术运算，比如加减运算等。同时它还具有科学计算器的功能，比如对数运算和阶乘运算等。(Windows operating system to achieve a similar " calculator" function. You can complete the usual arbitrary use handheld calculators to complete the standard operation. " Calculator" can be used for basic arithmetic operations, such as addition and subtraction operations. It also has a scientific calculator functions, such as arithmetic and logarithmic factorial computing.)

大型客户关系管理系统 oracle数据库 附上完整需求分析说明 功能没有完全实现 有待完善 有完整html代码(Large-scale customer relationship management system oracle database attach a complete needs analysis function is not fully complete html code needs to be improved)

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This is calcute the age of the persons.

二分法，数值分析实现方程求根的算法，这是java程序(Dichotomy, numerical analysis algorithms to achieve Roots of the equation, which is the java program)

java 实现 微信公众平台开发 服务器与微信公众平台连接( java achieve micro-channel public platform)

java中利用三大框架整合的项目，请大家认真查看( java中利用三大框架整合的项目，请大家认真查看)