Consider an online holiday booking system. The users can register and log in to book a holiday package. Currently, the packages. Which of the following is the most appropriate for an object-oriented design?
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- Consider an online holiday booking system. The users can register to book a holiday package. Currently, the design model includes the classes: User and Booking. Which of the following is correct regarding the message passing between a User object and a Booking object in the object-oriented design? Select one: O a. A Boolean value will be automatically returned to the Booking object which sends the message. O b. A value will be assigned to the attribute of the Booking object associated with message. O C. The attribute of the Membership object associated with message sent by the User object will be initialised. O d. The method of the Membership object associated with the message sent by the User object will be invoked.Consider an online holiday booking system. The users can register to book a holiday package. Currently, the design model includes the classes: User, Package and Family_Package. Which of the following is correct about a Package object in the object-oriented software design? Select one: a. A Package object’s attributes should always be made public and directly accessible. b. A Package object is one instance of its class. c. A Family_Package object contains a set of methods only. d. A Package object contains a set of attributes only.Consider an online holiday booking system. The software developers have identified the classes, Booking, Individual_Booking and Group_Booking via inheritance in their initial design. Which of the following should have a hollow triangle pointed to in the object-oriented design? a. Group_Booking b. Either Individual_Booking or Group_Booking c. Individual_Booking d. Booking
- Consider an online holiday booking system. The users can register to book a holiday package. Currently, the design model includes the classes: User and Booking. Assume the class, Group_Booking, is a sub-class of the class, Booking. Which of the following cannot be inherited by the Group_Booking class in the object-oriented design? Select one: O a. The protected attributes of the Booking class O b. The protected methods of the Booking class O C. The constructors of the Booking class O d. The public methods of the Booking classConsider an online holiday booking system. The users can register to book a holiday package, including a family package and a seaside package. The company would like to expand the facilities to include a hiking package. Which of the following is better to meet the above requirement? Select one: a. To design the Family Package class as the parent class, which aggregates Seaside_Package and Hiking_Package as the child classes O b. To design the Package class as the parent class, which is inherited by Family_Package, Seaside_Package and Hiking_Package as the child classes C. To design the Seaside_Package class as the parent class, which is inherited by Hiking_Package as the child class O d. To design the Seaside_Package class as the parent class, which aggregates Hiking Package as the child classesConsider an online holiday booking system. The initial design model contains the classes, Booking, Individual_Booking and Group_Booking via inheritance. Which of the following is used to describe the relationship of the three classes in the object-oriented design? O a. The set-a relationship b. The is-a relationship O c. The get-a relationship O d. The has-a relationship
- Wire is used in the following applications. For each application, prepare a list of wire characteristics that are relevant, (1) create class diagrams with attributes (2) create associate objects with values for each class. Use the following wire applications: Each wire application should have a separate diagram layout. a. Selecting wire for a transatlantic cable b. Designing the electrical system for an airplane c. Hanging a bird feeder from a tree d. Designing a piano e. Designing the filament for a light bulbConsider an online holiday booking system. The users can register to book a holiday package. Currently, the design model includes the classes: User and Booking. Assume the class, Group_Booking, is a sub-class of the class, Booking. Which of the following cannot be inherited by the Group_Booking class in the object-oriented design? Select one: a. The constructors of the Booking class O b. The protected attributes of the Booking class O c. The public methods of the Booking class O d. The protected methods of the Booking classYour assignment for this course is to implement a beginner level Book Management System (BMS) in Java language. BMS contains 2 classes: Bookand BookList. The Book class has the following attributes: code: a String object, that hold the book’s code. title: a String object, that hold the book’s title. qua: int variable, that hold the number of books with the same code in the library. price: a double variable, that hold the book’s price. The BookList class contains only one data member: ArrayList<Book> t. When running the program display the menu as below:1. Input & add book(s) to the end.2. Display all books.3. Search a book for given code.4. Update the book’s price for given code.5. Find the (first) max price value.6. Sort the list ascendingly by code.7. Remove the book having given code.8. Load data from file.0. Exit.Notes:(1) The book’s code must be unique in the list.(2) Display all books in format (code, title, quantity, price).(5)…
- Describe the classes, methods and attributes that you would use in the Object Oriented design of a simulated automobile. Use this format to describe your classes: Class: Door Methods: void Open(), void Close(), void SetLock(bool), bool GetLocked(), etc. Attributes: bool open, bool locked, class Window, etc.Consider an online holiday booking system. The users can register to book a holiday package. Assume that each consultant will be assigned to a group, depending on just one key area of their specialisation in travel packages. The current design model has the classes: Consultant Group and Consultant. Which of the following is correct for consultants and their groups in the object-oriented software design? Select one: O a. The multiplicity of Consultant Group and Consultant should be given as many-to-many. O b. The multiplicity of Consultant_Group may be given as many. O C. The multiplicity of Consultant_Group may be given as 1. O d. The multiplicity of Consultant should be given as 1.Consider an online holiday booking system which has the Booking and User classes in the design. Which of the following associations describe a whole-part relationship of the two classes in the object-oriented design? Oa. Composition and aggregation O b. Inheritance and aggregation 0 с. Interface and aggregation O d. Composition and inheritance