Strut2_Example

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.)

This is a content manage system for upgrade, java platform

ssd3 unit1编程参考答案，经过实践检验 绝对 正确(The answer of ssd3 unit1)

Carte programare Java in romana

100多M的J2EE培训内容，培训几天就要10万元，够黑的(More than 100 M of J2EE training content, training days will be 100,000 yuan, the够黑)

说明：  自己学习ssm开发的小系统,这是业务层，包含必要的Java代码(learn ssm and develop a system by myself)

成绩管理系统，对成绩管理，有成绩的录入，管理，分类等(achievement score result mark management system supervising system supervisory system manage supervise administrate Administration entering classify classification assortment)

能够实现简单类型的插入排序、冒泡排序和快速排序的升序和降序排列。(To achieve a simple type of insertion sort, bubble sort and quick sort of ascending and descending order.)

说明：  使用java开发，电梯调度系统，能正确根据现实生活中电梯情况来实现(Elevator dispatching system)

简易java(easyjf)框架开源论坛系统(Simple java (easyjf) framework of open-source forum system)