个人原创代码：编写Java Application程序，构造一个类来描述屏幕上的一个点，该类的构成包括点的x和y两个坐标，以及一些对点进行的操作，包括：取得点的坐标值，对点的坐标进行赋值，编写应用程序生成该类的对象并对其进行操作。-Personal original code: java application program, to construct a class to describe a point on the screen, the composition of the class, including the points x and y coordinates, and point operations, including: to obtain the coordinates of the point value.the coordinates of points assigned to write an application to generate the class object and its operation.