Point ................. #x : int #y : int + Point() + Point(xCoordinate:int, YCoordinate:int) + getX() : int + getY() : int (circle extends the the point) Circle .......... - radius : double + Circle() + Circle(x:int, y:int, radius:double) + setRadius(newRadius:double) : void + getRadius() : double + displayArea() : double a) Write a class named Circle that extends Point class. Refer a figure below to identify the attributes and methods for Circle class. In the Circle default constructor, value 0 is assigned to radius. The parameterized constructor used to construct with specified radius, X and Y. In the Point class, its default constructor will assign X and Y to value 0 whereas the parameterized constructor will assign value of xCoordinate to X and YCoordinate to Y. The getX() method and getY() method used to get the value of X and Y respectively, and return to a caller. b) Write a test program that - Create one Circle object known as objectCircle with radius is 2.7, x = 120 and y is 89. - Display the y, y , radius and area of that objectCircle. - Call function setRadius() by assigning 3.0 to new value of radius for objectCircle. - Display the latest radius and area for objectCircle.
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