① Rectangle class has a member variable of type double rectangle represents the position coordinates of the upper left corner and the width and height of the rectangle, modify the request and return the members of variables. ② Circle class has a member variable of type double, said the center coordinates and radius of the circle and ask for modifications and return each member variables. ③ Geometry class has Rectangle and Circle type class member variables rect and circle. Geometry class to create an object that is a combination of a rectangle and a circle formed. This class provides methods to modify the requirements rect, circle the location and size provide a display rect and circle the positional relationship between the method and the ability to display the circle is entirely located in the rectangle. ④ requests can Circle the number of classes and class Rectangle objects created statistics. Exa class contains a main method, main method used in Geometry class to create object tha

exa.txt

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