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 used to describe the relationship of the three classes in the object-oriented design? O a. The set-a relationship O b. The is-a relationship O c. The get-a relationship O d. The has-a relationship
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- 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 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 relationshipObject-oriented programming is centered on the object. Objects are created from abstract data types that encapsulate data and functions together. This a new and difficult concept to learn. Lets start with the basics. Write a UML-Class Diagram for an object of your choice (you cannot use any of the examples from the textbook). You will not use pseudocode for this assignment. Define the Class name Define at least 5 fields Define at least 5 methods When you respond to your classmates in the discussion, give them suggestions on how they could correct or improve their diagram.
- 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. BookingCreate an object-oriented program using decision making statements. The program should accept various user inputs. The program should also have the minimum structural requirements such as constructor, classes and objects. There should be a 2 classes.Class Relationships Exercises 1. In Java, we use inheritance for "is-a" relationships. Containment, on the other hand, indicates that one object has another object. These are "has-a" relationships. For the following relationships, determine if they are a "is-a" or a "has-a" relationship: o bicycle - vehicle o car - engine o pizza - topping o food - pizza o dog - mammal 2. Share with someone else 3 other examples for each of the following relationships: o Inheritance ("is-a" relationship) o Containment ("has-a" relationship) 3. public class PersonInfo { protected String firstName; protected String birthdate; } public class ChildInfo extends PersonInfo { private String schoolName; } public class MotherInfo extends PersonInfo { private String spousename; private ChildInfo children1; private ChildInfo children2; private ChildInfo children3; ... } A. Draw the relationships for the classes above using UML. If a class inherits from another class, draw an open arrow pointing to the base class…
- This programming problem consists of two parts and shall lead you through all the concepts involved in OOP Composition. Part 1: A class called Author (as shown in the class diagram) is designed to model a book's author. It contains: Three private instance variables: name (String), email (String), and gender (char of either 'm' or 'f'); One constructor to initialize the name, email and gender with the given values;public Author (String name, String email, char gender) {......}(There is no default constructor for Author, as there are no defaults for name, email, and gender.) public getters/setters: getName(), getEmail(), setEmail(), and getGender();(There are no setters for name and gender, as these attributes cannot be changed.) A toString() method that returns "Author[name=?,email=?,gender=?]", e.g., "Author[name=Tan Ah Teck,email=ahTeck@somewhere.com,gender=m]". Write the Author class. Also, write a test driver (for testing purpose on your local machine) called TestAuthor to test…Train the Trainer develops seminars and workshops for corporate training managers, who in turn train their employees. Your job at Train the Trainer is to put together the actual training materials. Right now, you are up against a deadline. The new object modeling seminar has a chapter on cardinality, and the client wants you to come up with at least three more examples for each of the four cardinality categories listed in Figure 6-16. The four categories are zero or many, zero or one, one and only one, and one or many. Even though you are under pressure, you are determined to use examples that are realistic and familiar to the students. What examples will you submit?Draw and explain the chart for implementing accessibility control using package in Java. Write program for the following. 1. Create an abstract parent class Parent, with Abstract method show, Abstract method display, Concrete method callme 2. Create two concert sub classes Child1 and Child2 which inherits the Parent class. 3. Declare a reference variable of the parent class and create one object for each child class. 4. Assign the reference of the object of child class to the reference variable of the parent class and implement dynamic method dispatch for all the possible methods in each child class.
- Given: UML diagram of an Account object Below. Use Java progaramming Language. Note: The static variables/data fields and methods in UML class diagrams are underlined. Create an Account Object project. 1. Design an Account class and use the provided UML diagram to code the instance fields, constructors and methods. Note: The type of accounts are 1 (Savings) or 2 (Cheque) The constructor must assign the values of the parameters to the data fields/instance variables. The static field must be increased by one in the constructor. The setAccNumber() is a private void method. The account number must consist of the first 3 letters of the name of the account holder, the digit indicating the type of account and #-character and a 3-digit random value. This method must be called from the constructor. The makeDeposit() method must add the amount received as a parameter to the balance if the value received is not a negative value. The withdrawAmount() method must check whether the balance…The following Object Relationship Diagram (ORD) is given. Write the definition for each class based on the ORD above. Include the overloaded constructors in each classUse java programming properties to write all the necessary classes and/or interfaces for a solution to the problem. Focus on class structure and interaction. You may implement your solution however you wish, but you will be graded on the appropriateness of your solution to the requirements. Note the use of capitalization and parentheses for clarification. You may use whatever constructors or additional methods you wish. Define a structure that can represent Animals. Animals have two behaviors; they can speak() and they can move(). By default, when an animal moves, the text ”This animal moves forward” is displayed. By default, when an animal speaks, the text ”This animal speaks” is displayed. A general Animal should not be able to be instantiated. Define two classes, Goose and Lynx, that are Animals. Both Goose and Lynx behave such that where “Animals” is displayed in speak() or move(), “goose” or “lynx” is displayed by the appropriate classes. Finally, any instance of Goose can fly(),…