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- Your 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)…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. InteractionIn 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
- Overview: The Observer Design Pattern is a way to design a subsystem that allows many objects to respond automatically to changes of a particular object that's being "observed". Task: Let's say that we have a bank system and this is a main branch (observed class) and there are three branch of bank (concrete class) where is notification supposed to receive by each of those branch notifySubscribers() method. Objectives: • Create a Class UML Diagrams using the Design Patterns showing the Observer Design Pattern. In java code, Create classes and all attributes and methods for the classes.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. 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.
- Create a class diagram for the Indiana University library.The Indiana University library has books, journals, and the daily newspaper. These are the things from the library. Every piece of library material is labeled with an id number and a title. Only books are available for loan to Indiana University students and faculty members, out of the whole collection. Staff members can borrow periodicals to use for their research projects. IU users (staff and students) who wish to borrow books must have their ID cards scanned by the librarian, who must then keep track of the borrower's ID, the loan date, and when the book is due back. The library keeps track of the names, ID numbers, and phone numbers of its patrons. Every user is issued a library card. Create a class diagram based on the information provided above. Please make sure that you display traits, multiplicities, and relationships when applicable.JAVA Create a class representing the student. Define all the properties you can think of. Define all methods the student class might have. (You can be inspired by the UML diagram but add some more methods you come up with). You can simplify the university management system by modeling it as an array of Students. Define all the methods the university management system should have.For this project, you will implement an email client-server simulator using the object-oriented design diagramed below. The class diagram above shows class attributes (members) and methods (operations). Operations are denoted with a plus. The diamonds indicate an aggregation relationship between the connected classes. For example, a mailbox list can have one or many mailboxes. A Mailbox can have one or many messages. You will therefore need data structures container objects (lists) to contain these types of objects, as we have seen in previous exercises. All class attributes are private unless denoted otherwise and therefore must be accessed with constructors. getters, ord setters. Constructors are a preferred way to set class attributes. Constructors, setters, getters, and toString methods can be generated by IntelliJ. Check the IntelliJ documentation for how to use the Generate feature. Messages are simultaneously sent and received. Therefore, a Message is…
- 4. Draw the class diagram for items sold in a book store. Every item in the store has a Universal Produce Code (UPC) and price. Books have a publisher and author, Comic Books have a publisher but not an author. Some other items just have a description in addition to the UPC and Price.Consider 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? a. The has-a relationship b. The get-a relationship c. The set-a relationship d. The is-a relationshipExplore scenarios where you might need to implement a custom Comparator for a class that already implements the Comparable interface. Provide real-world examples for context.