Starting out with Visual C# (4th Edition)
Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 10, Problem 1MC

When one object is a specialized version of another object, there is an_________ between them.

  1. a. “is a” relationship
  2. b. innate association
  3. c. inherent union
  4. d. unbreakable union
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Program Description Answer

In C#, if one object is a specialized type of another object, then there should be an “is a” relationship between those objects.

Hence, the correct answer is option “A”.

Explanation of Solution

“is a” relationship:

In C#, if one object is a specialized type of another object, then there should be an “is a” relationship between those objects. This is used to create the “is a” relationship among several classes.

For example:

  • • A truck is a vehicle.
  • • A circle is a shape.

Form the above example,

  • • The first statement implies that the vehicle is a “base class” and truck is the “derived class”.
    • ○ The “vehicle” is the parent of the “truck” in inheritance tree.
  • • Similarly, second statement implies that the shape is a “base class” and “circle” is the “derived class”.
    • ○ The “shape” is the parent of the “circle” in inheritance tree.

Explanation for incorrect options:

Innate association:

The innate association is not a “is a” relationship among those objects.

Hence, the option “B” is wrong.

Inherent union:

The inherent union is not a “is a” relationship among those objects.

Hence, the option “C” is wrong.

Unbreakable union:

The unbreakable union is not a “is a” relationship among those objects.

Hence, the option “D” is wrong.

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Chapter 10 Solutions

Starting out with Visual C# (4th Edition)

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...
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