Consider an online mobile phone application in which customers can purchase smartphones, including iPhone and Samsung models. The software designer considers applying the Gang of Four (GoF) Factory Method pattern to enhance their design. Currently, there are classes including: SalesInterface, Sales Process (to process the sales), Customer, Phone, iPhone, Samsung and Payment, in their design model. Which of the following is a good design? Select one: a. A Factory class should be created to hide the Phone and Customer classes. b. A Factory class should be created to hide the SalesInterface and Customer classes. C. A Factory class should be created to hide the SalesInterface and Sales Process classes. d. A Factory class should be created to hide the Phone, iPhone and Samsung classes.

Consider an online mobile phone application in which customers can purchase smartphones, including iPhone and Samsung models. The software designer considers applying the Gang of Four (GoF) Factory Method pattern to enhance their design. Currently, there are classes including: SalesInterface, Sales Process (to process the sales), Customer, Phone, iPhone, Samsung and Payment, in their design model. Which of the following is a good design? Select one: a. A Factory class should be created to hide the Phone and Customer classes. b. A Factory class should be created to hide the SalesInterface and Customer classes. C. A Factory class should be created to hide the SalesInterface and Sales Process classes. d. A Factory class should be created to hide the Phone, iPhone and Samsung classes.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 3PE

See similar textbooks

Similar questions

Analysis: Q1: There are common attributes and methods between passengers and drivers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. Q2: Draw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style following the rules of good programming style (e.g. adding comments, etc.) • using only the material covered in M251 (and its prerequisites) Java language*
Design and implement a class called Bug, which represents a bug moving along a horizontal wire. The bug can only move for one unit of distance at a time, in the direction it is facing. The bug can also turn to reverse direction. For your design, create a UML Class diagram similar to that on the attachment. Note that you need to include the constructor in the methods section if you code a constructor. Bug will require a toString method to return the current position and which direction the bug is facing to the driver so it can be output. Hint: Remember that a horizontal line has a zero position in the middle with positive to the right and negative to the left. Consider that a bug will land on the wire at some point before starting along the wire. Write an interactive test driver that instantiates a Bug, then allows the user to manipulate it with simple commands like Output (to see the position and direction), Move, Turn, Exit ... single letters work just fine. All output…
In a university there are different classrooms, offices and departments. A department has a name and it contains many offices. A person working at the university has a unique ID and can be a professor or an employee. "A professor can be a full, associate or assistant professor and he/she is enrolled in one department. •Offices and classrooms have a number ID, and a classroom has a number of seats. • Every employee works in an office. 1. Draw the class diagram for the scenario above
Design classes to represent the following “things” in the given enterprises. For each one, describe the class in English, then draw the UML class diagram containing a few obvious natural attributes. A work of art, displayed in a gallery or museum. An automobile, registered with the Motor Vehicle Department. A pizza, that is on the menu at a restaurant. Deliverables A document containing your answers to the three classes above, either hand-drawn or created with a computer.
A jeepney is a vehicle that can ferry commuters from one point to another. Jeepneys are built by Filipino manufacturers, engraved in the body of the car, with their touch of style. From a four-wheeled vehicle setup, modern jeepneys can now drive with three wheels. Some of these vehicles are equipped with speed limiters, GPS, and sometimes WiFi. Create a Jeepney Class considering the abovementioned characteristics of the vehicle. Identify the attributes and the behaviors/methods of the Class. At this point, you are not required to create the methods that will set and get the values of your attributes.
What would a default and parameterized constructor look like for the given scenerio below. A car dealership has hired your software development firm to create a new car inventory program. You will first need to develop a class that represents the inventory of the dealership. What components and attributes will need to be included in your Automobile Class? Why? Illustrate a default and parameterized constructor for your class.
Question 1 Computer Science In your drone application of precision agriculture create an object diagram (showing qualities of attributes and methods) for the classes you designed (to be updated as you proceed with the project)
Define a Course base class with attributes number and title. Define a print_info() method that displays the course number and title. Also define a derived class OfferedCourse with the additional attributes instructor_name, term, and class_time. Ex: If the input is: ECE287 Digital Systems Design ECE387 Embedded Systems Design Mark Patterson Fall 2018 WF: 2-3:30 pm the output is: Course Information: Course Number: ECE287 Course Title: Digital Systems Design Course Information: Course Number: ECE387 Course Title: Embedded Systems Design Instructor Name: Mark Patterson Term: Fall 2018 Class Time: WF: 2-3:30 pm python code used in this coding: class Course: # TODO: Define constructor with attributes: number, title # TODO: Define print_info() class OfferedCourse(Course): # TODO: Define constructor with attributes: # number, title, instructor_name, term, class_time if __name__ == "__main__": course_number = input()…
Define a Course base class with attributes number and title. Define a print_info() method that displays the course number and title. Also define a derived class OfferedCourse with the additional attributes instructor_name, term, and class_time. Ex: If the input is: ECE287 Digital Systems Design ECE387 Embedded Systems Design Mark Patterson Fall 2018 WF: 2-3:30 pm the output is: Course Information: Course Number: ECE287 Course Title: Digital Systems Design Course Information: Course Number: ECE387 Course Title: Embedded Systems Design Instructor Name: Mark Patterson Term: Fall 2018 Class Time: WF: 2-3:30 pm Note: Indentations use 3 spaces. Original Code: class Course:# TODO: Define constructor with attributes: number, title # TODO: Define print_info() class OfferedCourse(Course):# TODO: Define constructor with attributes: # number, title, instructor_name, term, class_time if __name__ == "__main__":course_number = input()course_title = input() o_course_number = input()o_course_title =…
Question1: Consider the MyReader class as given below. Identify any two problems (Problem 1, Problem 2) avoiding MakeTableand Centre the Name of the Class in the class design and provide fixed/correct version of this diagram. Also point out/mention/highlightyour fixes for identified Problem 1 and Problem 2, respectively. MyReader validateLocation() checkFTP() ping() readFromDisk() readFromWeb() readFromNetwork()
Analysis: Q1: There are common attributes and methods between kids and trainers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. Q2: Draw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style following the rules of good programming style (e.g. adding comments, etc.) using only the material covered in M251 (and its prerequisites) Hints: For each class, it is required to implement constructors, setters, getters, toString() method, and any other necessary method If the user tries to do an operation that could violate the state of objects, the operation should be ignored and the application should display an error message (e.g. adding a kid to the same group twice, etc.) Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of…
In your drone application of precision agriculture create an object diagram (showing qualities of attributes and methods) for the classes you designed (to be updated as you proceed with the project)