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- For the given design, Which of the following is NOT true about the design? Select one: a. It supports modular design. b. The AuthenticateUser sequence diagram can be reused only after a doB message call. c. The AuthenticateUser sequence diagram can be reused only when the authenticate() message is invoked on a B object. d. The DoFoo sequence diagram can be reused in any context where a B object and a C object are involved. e. The doB message must be called after the doA message.Question 4 For this question, let's combine ADTS and dictionaries! Let's try to make an ADT that represents a politician. The politician ADT has a constructor make_politician. There are three selectors, get_name, get_party, and get_age. When implementing an ADT, you have the freedom to choose how you want to represent it. Some common data structures used to represent ADTs are lists and dictionaries. The city ADT was implemented using a list. Now, let's use dictionaries to implement our politician ADT. You must use a dictionary for this question, or else you will not pass the tests.PART I: Given the following UML diagram. Answer the following questions PCRTest - newNum: int //-- auto-increment patientName: String previousResult: int //-- should be less than 35 - currentResult: int //-- should be less than 35 + PCRTest (patientName: String, previousResult: int) +setcurrentResult (int r):void +getcurrentResult () : int +isRecovered () : boolean +tostring () : String + GenerateCode (): String //-- explained in part III Question PCRTest as weir as the constructor and the setter and getter of the currentResult. Note that: • The attribute newNum is incremented when a PCRTest object is created. It represents the total ): Implement all the data fields represented in the UML diagram of the class number of tests. • The constructor accepts the patient's name and the previous test result. The value of previousResult and currentResult should be between 0 and 35. • The method setcurrentResult(int r) assigns the value r to the currentResult attribute. The method…
- Q No. 2: Draw a Use Case diagram for "The Pizza Ordering System". (Hint – correct > or > relationships will attract additional marks). The Pizza Ordering System The Pizza Ordering System allows the user of a web browser to order pizza for home delivery. To place an order, a shopper searches to find items to purchase, adds items one at a time to a shopping cart, and possibly searches again for more items. When all items have been chosen, the shopper provides a delivery address. If not paying with cash, the shopper also provides credit card information. The system has an option for shoppers to register with the pizza shop. They can then save their name and address information, so that they do not have to enter this information every time that they place an order.Saved Which of the following statements about UML class diagrams is false? Question 3 options: A) Like operations, the UML models constructors in the third compartment of a class diagram. B) It's customary to list constructors before other operations in the third compartment. C) To distinguish a constructor from the class's operations, the UML requires that the word "constructor" be enclosed in guillemets and placed before the constructor's name. D) All of these are true.> Create UML Class diagram for e-library system as described, make sure to show attributes, generalization where appropriate. operations, multiplicities, and aggregations/compositions, A library system has materials which would be books, journals, or CDs. All library material (books, magazines, and CD) has a unique identification number and a title. Books have one or more authors, journals have producer, while CDs have entertainer. all library materials can be loaned to users, users have user-id, user-name, birthdate (day, month, and year), age and phone-number. Users can loan any material, for each loan the library records material-id, the user-id, loan-date (day, month, and year), and loan time (hour, minute), and loan counter (shared)
- SUNSHINE AIRLINE COMPANY The ER Diagram for the SUNSHINE AIRLINE COMPANY is based on the following: - For each airplane type, we keep track of a unique airplane type ID (AirplaneTypelD), number of engines (NoOfEngines), and number of seats (NoOfSeats). - For each airport, we keep track of a unique airport ID (AirportID), and the length of the main runway (LengthOfRunway). - Each airplane type is able to land at one airport at least, but may be able to land at many airports. Each airport accommodates landing of at least one airplane type, but may accommodate landing of more airplane types. SUNSHINE AIRLINE COMANY (ERD) XXX YYY zzz PPP AAA Relationship BBB Symbol1 Symbol2 In the ER Diagram for the SUNSHINE AIRLINE COMPANY, which word should replace gg? O LengthOfRunway O NoOfEngines O AirplaneTypelD O AirportID O NoOfSeatsUsing the scenario of Object oriented programming Q1 Write a program that defines a class with a data member to holds a “serial number” for each object created from the class. That is, the first object created will be numbered 1, the second 2, and so on. To do this, you’ll need another data member that records a count of how many objects have been created so far. (This member should apply to the class as a whole; not to individual objects. What keyword specifies this?) Then, as each object is created, its constructor can examine this count member variable to determine the appropriate serial number for the new object. Add a member function that permits an object to report its own serial number. Then write a main() program that creates three objects and queries each about its serial number. They should respond I am object number 2, and so on.We wish to implement a system that allows the management of Employees and Students. As a first step. you need to implement the above UML diagrams Notes: . ZOOM . PERSON, EMPLOYEE and STUDENT should be public static constants The no-arg constructor will initialize ID, firstName and lastName to their respective null values. It will set personType to PERSON, and sortorder to LAST_NAME The overloaded constructor will assign each parameter to its respective field. sortorder will also be set to LAST_NAME toString() will output type, ID, firstName and lastName, all tab separated. This is an override method equals() will compare if the current object and the parameter contain the same values. This is an override method compareTo() compares the current object and the parameter. This is an override method. It will be used to sort objects Needs the Comparable interface O Will only compare fields depending on the sortorder. For example, if the sortorder is TYPE, it should then compare the…
- 76. Aggregation is which of the following? a. Expresses a part-of relationship and is a stronger form of an association relationship. b. Expresses a part-of relationship and is a weaker form of an association relationship. c. Expresses an is-a relationship and is a stronger form of an association relationship. d. Expresses an is-a relationship and is a weaker form of an association relationship.A marker annotation is a type of annotation that has no members.Its primary function is to denote a declaration. As a result, its mere appearance as an annotation suffices.The function isAnnotationPresent() offered by the AnnotatedElement interface is the best approach to determine if a marker annotation is present.Create an example that makes use of a marker annotation.Select the correct statements about the following sequence diagram: :Specific Flight cancelBooking :Booking :PassengerRole cancel deleteFromItinerary deleteFromPassengerList A. "deleteFrom Passenger List" is a result the message "cancel." B. Booking object's lifetime ends after issuing the "deleteFrom PassengerList" message. C. Actor initiates the interaction by passing the "cancelBooking" message. D. Specific Flight, Booking and Passenger Role objects are already existing when the interaction starts.