Using the information described below, you are to sketch a class diagram. In this diagram, you are to identify the objects (only object names are required), indicate the nature of the object relationship and its cardinality (UML notation). In an online bookstore, a customer can add items (s)he wants to order into a shopping cart. The items that are available for customer to order are books, music CDs and software.
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- 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?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 aboveCreate your own UML diagram — similar to the above UML diagram — for a Pet class that meets thespecification below.1. Create the fields indicated below. Use these names exactly as given for your fields. Define them inexactly this order.• name — The name of the pet, e.g., “Rufus”, “Mittens”, “Smelly”, etc.• animal — The type of pet, e.g., “dog”, “cat”, “asparagus”, etc.• age — The (integer) number of years the pet has been alive, e.g., 1, 2, 3, etc.2. Create a mutator for each of the above in the order listed. Use the standard Java naming conventionfor mutators.3. Create an accessor for each of the above in the order listed. Use the standard Java naming conventionfor accessors.Example: Suppose you are taking the question for the example Car UML above instead of your Pet UML.Don’t enter any spaces at all.When the question asks: Enter line 1:You would enter: CarWhen the question asks: Enter line 2:You would enter: -make:StringWhen the question asks: Enter line 3:You would enter:…
- Create your own UML diagram — similar to the below UML diagram — for a Pet class that meets thespecification below.1. Create the fields indicated below. Use these names exactly as given for your fields. Define them inexactly this order.• name — The name of the pet, e.g., “Rufus”, “Mittens”, “Smelly”, etc.• animal — The type of pet, e.g., “dog”, “cat”, “asparagus”, etc.• age — The (integer) number of years the pet has been alive, e.g., 1, 2, 3, etc.2. Create a mutator for each of the above in the order listed. Use the standard Java naming conventionfor mutators.3. Create an accessor for each of the above in the order listed. Use the standard Java naming conventionfor accessorsUsing UML class diagrams, create a design for the following (you can defer declaring the types for any instance variables and instance methods as long as you represent the concepts appropriately). NB: You may hand-draw your diagram or use a drawing program (your choice). Upload your finished answer for (a) and (b) as one file. (a) An Employer has one or more Employees. An Employee has exactly one Employer. Employees have attributes for their name, salary and job title (b) We are producing a vehicle registration system for the local DMV/RMV. Model the following using a UML class diagram. Read the entire specification before proceeding (this is ONE question, broken into 4 segments for readability): (i) Our interface (protocol/contract) IVehicle states that all vehicles can register() and calculateExciseTax(). These operations are public and the Vehicle contract is stable – it will not change. (ii) We think we’ll be able to take advantage of code-reuse, so your team must introduce an…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 bulb
- In Object Oriented Programming, classes represent abstractions of real things in our programs. We must quickly learn how to define classes and develop skills in identifying appropriate properties and behaviors for our class. To this end, pick an item that you work with daily and turn it into a class definition. The class must have at least three properties/data fields and three functions/behaviors (constructors and get/set functions don’t count). Do not pick examples from the textbook and do not redefine a class already defined by a classmate. Use proper C++ syntax to present your class.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.Design a UML diagram to represent class called damConstruction, to implement the properties of a water dam construction. Your class should have the instance variables to store the length (in meters), width (in meters), depth (in meters), the rate (in litters per minute) at which the water is filling the dam, and the rate (in litters per minute) at which the water is draining from the dam. Add appropriate constructors to initialize the instance variables. Also add member functions to do the following: determine the amount of water needed to fill an empty or partially filled dam; determine the time needed to completely or partially fill or empty the dam; add or drain water for a specific amount of time: 1. Following the UML diagrams you designed in 1., code the class.
- Design a UML diagram to represent class called damConstruction, to implement the properties of a water dam construction. Your class should have the instance variables to store the length (in meters), width (in meters), depth (in meters), the rate (in litters per minute) at which the water is filling the dam, and the rate (in litters per minute) at which the water is draining from the dam. Add appropriate constructors to initialize the instance variables. Also add member functions to do the following: determine the amount of water needed to fill an empty or partially filled dam; determine the time needed to completely or partially fill or empty the dam; add or drain water for a specific amount of time.Design and implement a class called Bug, which represents a bug moving along a horizontal wire. The bug can only move for one unit of distance at a time, in the direction it is facing. The bug can also turn to reverse direction. For your design, create a UML Class diagram similar to that on the attachment. Note that you need to include the constructor in the methods section if you code a constructor. Bug will require a toString method to return the current position and which direction the bug is facing to the driver so it can be output. Hint: Remember that a horizontal line has a zero position in the middle with positive to the right and negative to the left. Consider that a bug will land on the wire at some point before starting along the wire. Write an interactive test driver that instantiates a Bug, then allows the user to manipulate it with simple commands like Output (to see the position and direction), Move, Turn, Exit ... single letters work just fine. All output…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.