• Shape (this will be the base class) o The _init_ method should take in just the identifier and store it. No dimensions are required. o Both the get_area and get_perimeter methods should display (print) messages saying that the area or perimeter cannot be calculated and then return None. o The get_id method should just return the identifier. Because every other class will be derived from Shape as a child or grandchild, this method will be available to them as well without reimplementation. Ellipse (derived from the Shape class) o The _init__ method should take in an identifier, the major axis radius, and the minor axis radius, call the parent class's (hint: super()) constructor to store the identifier, then store the dimensions (major and minor axis radii) as data variables. o There is no good way to get a perimeter of an ellipse, so the get_perimeter method should display (print) a message saying that the perimeter cannot be calculated. o The get_area method is implementable. Look online for resources. Circle (derived from Ellipse class) o The _init_ method should take in an identifier and radius, then call the parent class's constructor to store the identifier and to store the input argument radius as both the major and minor axis radii of the parent class Ellipse. o The get_area method does not need to be implemented in this classsince the parent class Ellipse already has an implementation. o You will need to implement the get_perimeter method, since there does exist a simple formula to find the perimeter, or circumference, of a circle. • Rectangle (derived from the Shape class) o The _init_ method should take in an identifier, the width, and the length, call the parent class's (hint: super() constructor to store the identifier, then store the dimensions (the width and length) as data variables. o You will need to implement both get_area and get_perimeter. Square (derived from the Rectangle class) • The _init_ method should take an identifier and the side length, calle the parent class's constructor to store the identifier and to store the input argument length as both the width and length of the parent class Rectangle constructor. o You should not need to implement either get_area or get_perimeter in this class, since the parent class Rectangle should cover these methods

• Shape (this will be the base class) o The _init_ method should take in just the identifier and store it. No dimensions are required. o Both the get_area and get_perimeter methods should display (print) messages saying that the area or perimeter cannot be calculated and then return None. o The get_id method should just return the identifier. Because every other class will be derived from Shape as a child or grandchild, this method will be available to them as well without reimplementation. Ellipse (derived from the Shape class) o The _init__ method should take in an identifier, the major axis radius, and the minor axis radius, call the parent class's (hint: super()) constructor to store the identifier, then store the dimensions (major and minor axis radii) as data variables. o There is no good way to get a perimeter of an ellipse, so the get_perimeter method should display (print) a message saying that the perimeter cannot be calculated. o The get_area method is implementable. Look online for resources. Circle (derived from Ellipse class) o The _init_ method should take in an identifier and radius, then call the parent class's constructor to store the identifier and to store the input argument radius as both the major and minor axis radii of the parent class Ellipse. o The get_area method does not need to be implemented in this classsince the parent class Ellipse already has an implementation. o You will need to implement the get_perimeter method, since there does exist a simple formula to find the perimeter, or circumference, of a circle. • Rectangle (derived from the Shape class) o The _init_ method should take in an identifier, the width, and the length, call the parent class's (hint: super() constructor to store the identifier, then store the dimensions (the width and length) as data variables. o You will need to implement both get_area and get_perimeter. Square (derived from the Rectangle class) • The _init_ method should take an identifier and the side length, calle the parent class's constructor to store the identifier and to store the input argument length as both the width and length of the parent class Rectangle constructor. o You should not need to implement either get_area or get_perimeter in this class, since the parent class Rectangle should cover these methods

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 1GZ

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