Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10, Problem 11MC
A class that is not intended to be instantiated, but used only as a base class, is called a(n) __________.
- a. dummy class
- b. subclass
- c. virtual class
- d. abstract class
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In the board game Scrabble, each tile contains a letter, which is used to spell words in rows and columns, and a score, which is used to determine the value of words. The point of this exercise is to practice the mechanical part of creating a new class definition:
Write a definition for a class named Tile that represents Scrabble tiles. The instance variables should be a character named "letter" and an integer named "value".
Write a constructor that takes parameters named letter and value, and initializes the instance variables.
Create getters for both of the attributes. (No setters, so that a Tile is immutable.)
Implement the .toString() and .equals methods for a Tile.
Your completed Tile class should work with this Main program (Links to an external site.) so that it produces sample output like shown at the end of the program. You can Fork the program to make your own version in Replit, where you can add your Tile.java, or you can copy the program to your own Java development…
Step 3: Add a basic WineCase class and allow a buyer to select a case of wine to buy.
Write a basic WineCase class to represent a case of wine. A WineCase object has four fields: refNo (a unique sequence of letters and digits), description (e.g. "chablis", "white burgundy" or similar), noOfBottles (in the case) and price (the price of the case in pounds). The constructor for the class should be passed suitable arguments to initialise these four fields.
Add a selectWineCase() method to the Browser class which allows a browser to choose a case of wine provided that browser is a buyer. This method is passed a WineCase object as a parameter. You should declare a new field wineCase in the Browser class in order to store the case of wine selected.
Make the selectWinecase() method print a message to the terminal window about the selection. An example is shown below:
Buyer with ID 6732 has selected wine case with reference
number LO786, a case of 2018 Pinot…
Step 3: Add a basic WineCase class and allow a buyer to select a case of wine to buy.
Write a basic WineCase class to represent a case of wine. A WineCase object has four fields: refNo (a unique sequence of letters and digits), description (e.g. "chablis", "white burgundy" or similar), noOfBottles (in the case) and price (the price of the case in pounds). The constructor for the class should be passed suitable arguments to initialise these four fields.
Add a selectWineCase() method to the Browser class which allows a browser to choose a case of wine provided that browser is a buyer. This method is passed a WineCase object as a parameter. You should declare a new field wineCase in the Browser class in order to store the case of wine selected.
Make the selectWinecase() method print a message to the terminal window about the selection. An example is shown below:
Buyer with ID 6732 has selected wine case with reference
number LO786, a case of 2018 Pinot…
Chapter 10 Solutions
Starting out with Visual C# (4th Edition)
Ch. 10.1 - In this section, we discussed base classes and...Ch. 10.1 - Prob. 10.2CPCh. 10.1 - What does a derived class inherit from its base...Ch. 10.1 - Look at the following code, which is the first...Ch. 10.1 - Briefly summarize the constructor issues in...Ch. 10.2 - Look at the following class definitions: class...Ch. 10.2 - Does the is a relationship work in reverse? Why or...Ch. 10.3 - What is the purpose of an abstract class?Ch. 10.3 - If a class is abstract, what cannot be done with...Ch. 10.3 - If a class is derived from a base class that has...
Ch. 10.3 - What must be done with an abstract property before...Ch. 10.3 - How can you create an abstract read-only property?Ch. 10 - When one object is a specialized version of...Ch. 10 - In an inheritance relationship, the_______ is the...Ch. 10 - In an inheritance relationship, the___________ is...Ch. 10 - Base classes are sometimes called____________. a....Ch. 10 - Derived classes are sometimes called______________...Ch. 10 - The refers to the base class. a. friend keyword b....Ch. 10 - Prob. 7MCCh. 10 - When a derived class method has the same name as a...Ch. 10 - The declares that a derived class is allowed to...Ch. 10 - The declares that this method overrides a method...Ch. 10 - A class that is not intended to be instantiated,...Ch. 10 - To declare a class as abstract, you use the...Ch. 10 - A regular, nonabstract class is sometimes called a...Ch. 10 - A(n) __________ is a method that appears in a base...Ch. 10 - A(n) __________ is a property that appears in a...Ch. 10 - __________ allows a base class reference variable...Ch. 10 - The base class inherits fields, properties, and...Ch. 10 - Polymorphism allows a class variable of the base...Ch. 10 - Properties in a base class cannot be overridden in...Ch. 10 - A base class reference variable can reference an...Ch. 10 - A statement that tries to use the new operator to...Ch. 10 - A class that is not intended to be instantiated,...Ch. 10 - When an abstract property appears in a class, it...Ch. 10 - What does a derived class inherit from its base...Ch. 10 - Look at the following code, which is the first...Ch. 10 - Can methods in the derived class directly access...Ch. 10 - When you create an instance of a derived class,...Ch. 10 - In what kind of situation would you want to use an...Ch. 10 - What is primary difference between an abstract...Ch. 10 - Can abstract classes also contain abstract...Ch. 10 - Write the first line of the definition for a...Ch. 10 - Look at the following class declarations: class...Ch. 10 - Write a parameterized constructor for a base class...Ch. 10 - Prob. 4AWCh. 10 - Create an abstract class called Star. Include an...Ch. 10 - Employee and ProductionWorker Classes Create an...Ch. 10 - ShiftSupervisor Class In a particular factory, a...Ch. 10 - TeamLeader Class In a particular factory, a team...Ch. 10 - Person and Customer Classes Design a class named...Ch. 10 - PreferredCustomer Class A retail store has a...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Find out if your compiler supports variable-length arrays. If it does, write a small program to test the featur...
Programming in C
Car Loan If A dollars are borrowed at r interest compounded monthly to purchase a car with monthly payments for...
Introduction To Programming Using Visual Basic (11th Edition)
Solar System Use the Circle class to draw each of the planets of our solar system. Draw the sun first, then eac...
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Markup Write a program that asks the user to enter an items wholesale cost and its markup percentage. It should...
Starting Out with C++: Early Objects
True or False: By default all members of an interface are public.
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Write a program named SalespersonDemo that instantiates objects using classes named Real EstateSalesperson and GirlScout. Demonstrate that each object can use a SalesSpeech() method appropriately. Also, use a MakeSale() method two or three times with each object, and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salespersons full name—the first and last names separated by a space. Then perform the following Create two child classes of Salesperson: Real EstateSalesperson and Girl Scout. The Real EstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The Girl Scout class includes a field to hold the number of boxes of cookies sold, which is initialized to 0. Include properties for every field. Create an interface named ISell able that contains two methods: SalesSpeech() and MakeSale(). In each Real EstateSalesperson and Girl Scout class, implement SalesSpeech() to display an appropriate one- or two-sentence sales speech that the objects of the class could use. In the Real Estatesalesperson class, implement the MakeSale() method to accept an integer dollar value for a house, add the value to the Real EstateSalespersons total value sold, and compute the total commission earned. In the Girl Scout class, implement the MakeSale() method to accept an integer representing the number of boxes of cookies sold and add it to the total field.arrow_forwardCreate a base class called “Animal” which has two (2) class fields. The first field holds an integer “IDtag” for a number that a zoo uses to catalogue their animals and the second field holds a string called “species.”From the Animal class, derive two (2) classes. One is called “Bird” and the other “Reptile”. E.g. Species could be (for the Bird class) ostrich, dove, chicken etc. and (for the Reptile class) lizard, snake, bearded dragon etc.The Bird class has an additional class field called “colour” which holds the colour of the birds feathers (int – 1=grey, 2=white, 3=black). The reptile class has an additional class field called “bloodTemp” which hold the reptile’s temperature of their blood (double).You need to instantiate two (2) objects. The bird object will be called “brd” and the reptile object called “rept.”Input values for the bird’s IDtag, species and feather colour (int) and for the reptile’s IDtag number, species and bloodTemp. Override the Animal class’s input and output…arrow_forwardIn the board game Scrabble, each tile contains a letter, which is used to spell words in rows and columns, and a score, which is used to determine the value of words. The point of this exercise is to practice the mechanical part of creating a new class definition: Write a definition for a class named Tile that represents Scrabble tiles. The instance variables should be a character named "letter" and an integer named "value".arrow_forward
- Create an abstract class named Element that holds properties of elements,including their symbol, atomic number, and atomic weight. Include aconstructor that requires values for all three properties and a get method for each value. (For example, the symbol for carbon is C, its atomic number is 6, and its atomic weight is 12.01. You can find these values by reading a periodic table in a chemistry reference or by searching the Internet.) Also include an abstract method named describeElement(). Create two extended classes named MetalElement and NonMetalElement. Each contains a describeElement() method that displays the details of the element and a brief explanation of the properties of the element type. For example, metals are good conductors of electricity, while nonmetals are poor conductorsarrow_forwardwrite a class called OneItemBag ( OneItemBag.java ). This class represents a bag that can hold any single type of object (decided at bag-creation time), and only one item of that type at a time. You may have a zero-parameter constructor if you want one, but you must have the following three features:1. a method that puts an item in the bag (addItem()) which returns whether or not it was successfully added2. a method that removes an item from the bag and returns it (removeItem()), return null if there is no item3. a method to check if an item is in the bag (hasItem()) which returns true or falsearrow_forwardCreate an abstract class called Student. The Student class includes a name and aBoolean value representing full-time status. Include an abstract method to determinethe tuition, with full-time students paying a flat fee of $2,000 and part-time studentspaying $200 per credit hour. Create two subclasses called FullTime and PartTime.Create an application that demonstrates how to create objects of both subclasses.Save the files as Student.java, FullTime.java, PartTime.java, and UseStudent.java.arrow_forward
- Create an abstract super class called Employee with the following attributes: Use JavaDoc comments in the Parent and Child Classes only but use @author for the driver name : String and the following methods getter and setter for the one attribute two constructors an abstract method called getPay() equals() toString() Create a sub class of Employee called SalaryEmployee with the following attribute yearlyPay : double and the following methods getter and setter for the one attribute two constructors getPay() that returns the yearlyPay divided by 52 equals() toString() Create a sub class of Employee called HourlyEmployee with the following attributes: hoursWorked : double payrate : double and the following methods getters and setters for the two attributes two constructors getPay() that returns the weekly pay (multiply hoursWorked by payrate - overtime included and 1.5 times payrate for hours > 40) equals() toString() Create a sub class of Employee called SalesEmployee with the…arrow_forward-------Answer code question below--------- Create a class Student with the following characteristics Implements Cloneable interface. Contain two member variables RollNo & Name. Initialize member variable of using the parameterized (2 parameters) constructor. Implement getRollNo and getName methods which returns respective variable values. Input: PGMCA2017 Amit where, The first line contains RollNo. The second line contains Name. Output PGMCA2017 Amit solution.java code below:arrow_forward-------Answer code question below--------- Create a class Student with the following characteristics Implements Cloneable interface. Contain two member variables RollNo & Name. Initialize member variable of using the parameterized (2 parameters) constructor. Implement getRollNo and getName methods which returns respective variable values. Input: PGMCA2017 Amit where, The first line contains RollNo. The second line contains Name. Output: PGMCA2017 Amit solution.java code below: *Do not change any other part of the code other than where it says you can.arrow_forward
- The classes DateInfo and Student in different packages 1. Create two packages, calendar, and personal_data 2. Create a class called DateInfo inside the package calendar 3. The class DateInfo has only three variables, day (type integer), month (integer), year (integer). 4. The three variables day, month and year, are invisible outside the class DateInfo. 5. Define a constructor for the class DateInfo with three-arguments to initialize the variables day, month and year. 6. Write a method called getDateFormat, that returns a date format example; 19/4/2016 (the method returns a String type for simplification) 7. Create a class called Person inside the package personal_data. 8. The Person class has only two variables, name (type String) and birthDate (type DateInfo). 9. Create two Person objects for Omar and Rami, Omar's birthDate is 28/8/1998 and Rami's birthDate is 13/9/1996arrow_forwardWrite a graphical application that contains a class named RV whose objects are the recreational vehicle designed and digitized as described in Knowledge Exercises 20 and 21 (you can design your version as well. Simple car shape is will be appreciated. The class’s private data members should be the vehicle’s body color and (x, y) location. a) Give the UML diagram for the class. It should include a three-parameter constructor, a toString method, a method to input the values of all of an object’s data members, and a show method to draw the RV at its current (x, y) location. b) Progressively implement and test the RV class by adding a method and verifying it before adding the next method. A good order to add the methods to the class is the three-parameter constructor, followed by the toString method, the show method, and finally the inputmethod. The client code should create an RV object using the three-parameter constructor to test all of the methods as they are progressively added to the…arrow_forwardCreate a class student and then create an object of this class and work with it. Idfirst namelast namegradesdate of birthfield of studyenrolled coursesenrolled semester using constructors, setters-getters in JAVA programmingID must be generatedarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
Memory Management Tutorial in Java | Java Stack vs Heap | Java Training | Edureka; Author: edureka!;https://www.youtube.com/watch?v=fM8yj93X80s;License: Standard YouTube License, CC-BY