Consider an online holiday booking system. The users can register to book a holiday package, including a family package. Which of the following special terms describes how closely the attributes of the Package and Family_Ppackage class are related to one another? Select one: O a. Coupling O b. Cohesion O C. Interaction O d. Correlation
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- onsider an online holiday booking system. The users can register to book a holiday package, including a family package. Which of the following special terms describes how closely the attributes of the Package and Family_Ppackage class are related to one another? Select one: a. Coupling b. Cohesion c. Correlation d. InteractionConsider an online holiday booking system. The users can register to book a holiday package, including a family package. Which of the following special terms describes how closely the attributes of the Package and Family_Ppackage class are related to one another? Select one: a. Coupling b. Cohesion c. Correlation O d. InteractionConsider an online holiday booking system. The users can register to book a holiday package. Currently, the system design has the Payment interface class to enable users to pay a deposit in pound sterling (GBP) for their holiday booking. The software designer would like to apply the Gang of Four (GoF) adapter pattern to handle apayment in Euro (€). Which of the following is correct for the implementation of the pattern? Select one: O a. The Payment class should implement the GBP_Adapter class. O b. The GBP_Adapter class is composed with the Euro_Adaptee class. O c. The Payment class should implement the Euro_Adaptee class. O d. The Payment class is composed with the Euro_Adaptee class.
- Consider an online holiday booking system. The users can register to book a holiday package. Assume that a user will have been granted access to all online facilities once the user has been registered. The current design model has the classes: User and Facility. Which of the following is better to model the members and facilities in the software design? Select one: O a. The User and Facility objects should have a many-to-many association. O b. The User and Facility objects should have a one-to-one association. O C. The User and Facility objects should be modelled in a composition association. O d. The User and Facility objects should be modelled in inheritance.Consider a call centre with three personnel levels: responder, manager, and director. An incoming phone call must first be assigned to a responder who is available. If the respondent is unable to handle the call, it must be escalated to a management. If the manager is unavailable or unable to address the situation, the call should be escalated to a director. Create the classes and data structures needed for this problem. Create a dispatchCall () method that allocates a call to the first available employee.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: Sales Interface, 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.
- Now we are going to use the design pattern for collecting objects. We are going to create two classes, a class AmazonOrder that models Amazon orders and a class Item that models items in Amazon orders. An item has a name and a price, and the name is unique. The Item class has a constructor that takes name and price, in that order. The class also has getters and setters for the instance variables. This is the design pattern for managing properties of objects. The setName() method should do nothing if the parameter is the empty string, and the setPrice() method should do nothing if the parameter is not positive. The class also has a toString() method that returns a string representation for the item in the format “Item[Name:iPad,Price:399.99]”. For simplicity, we assume an Amazon order can have at most 5 items, and class AmazonOrder has two instance variables, an array of Item with a length of 5 and an integer numOfItems to keep track of the number of items in the…Consider the following UML diagram. Suppose that each of these classes has a getMass () method that returns the mass of the current object (double); that the Star class has a getPlanets () method that returns an array of Planet objects (the planets that orbit this planet); and that the Planet class has a getMoons () method that returns an array of Moon objects (the moons if this planet). All attributes of these classes are private. All methods described above are public. Star 0.. Planet Create a class called SolarMass that has a single class method in it called solarMass (Star theStar) that returns the total mass of the input star (along with the mass of all of that star's planets and their moons). The method returns a double. Any program should be able to call this method. e..* MoonConsider an online holiday booking system. The users can register to book a holiday package. The software designer would like to apply the Gang of Four (GoF) Decorator pattern to include a new feature which allows the users to collect loyalty points for their next holiday in addition to the core registration. Which of the following is the most appropriate for the implementation of the pattern? Select one: O a. The Loyalty_Point class should implement the Decorator class. O b. The Registration class should implement the Decorator class. O C. The Decorator class should implement the Registration class. O d. The Decorator class should implement the Loyalty_Point class.
- Consider a call centre with three personnel levels: responder, manager, and director. An incoming phone call must first be assigned to a responder who is available. If the respondent is unable to handle the call, it must be escalated to a manager. If the manager is unavailable or unable to handle the situation, the call should be escalated to a director. Create the classes and data structures needed for this problem. Create a dispatchCall () method that assigns a call to the first available employee.This is the question - Create an abstract NewspaperSubscription class with fields for the subscriber name, address, and rate. Include get and set methods for the name field and get methods for the address and subscription rate; the setAddress() method is abstract. Create two subclasses named PhysicalNewspaperSubscription and OnlineNewspaperSubscription. The parameter for the setAddress() method of the PhysicalNewspaperSubscription class must contain at least one digit; otherwise, an error message is displayed and the subscription rate is set to 0. If the address is valid, the subscription rate is assigned $15. The parameter for the setAddress() method of the OnlineNewspaperSubscription class must contain an at sign (@) or an error message is displayed. If the address is valid, the subscription rate is assigned $9. Code I was given - public class DemoSubscriptions { public static void main(String args[]) { PhysicalNewspaperSubscription pnsGood = new…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