When discussing relationships between two classes, what is the difference between inheritance and aggregation? Inheritance specifies an "is-a" relationship; aggregation specifies a "has-a" relationship Inheritance specifies a "has-a" relationship; aggregation specifies an "is-a" relationship Inheritance specifies a "containment" relationship; aggregation specifies "polymorphism" Inheritance specifies "polymorphism"; aggregation specifies an inheritance relationship

When discussing relationships between two classes, what is the difference between inheritance and aggregation? Inheritance specifies an "is-a" relationship; aggregation specifies a "has-a" relationship Inheritance specifies a "has-a" relationship; aggregation specifies an "is-a" relationship Inheritance specifies a "containment" relationship; aggregation specifies "polymorphism" Inheritance specifies "polymorphism"; aggregation specifies an inheritance relationship

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter1: A First Program Using C#

Section: Chapter Questions

Problem 7RQ: The technique of packaging an objects attributes into a cohesive unit that can be used as an...

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A has-a relationship is implemented via inheritance.T/F
Map each of the keywords on the left to the statement that describes it the best. Inheritance Class Object Polymophism Instance variable [Choose ] ✓ It is any variable that does not represent a living being. It allows properties and functions to be passed to another object when an object is deleted. It represents a blue print of an object. It is like a global variable that can be accessed in all functions of a program. It is a category to organize variables and objects in groups. It is an instance of a class. It is a programming command with a special meaning. Classes can acquire properties and functions from other classes. It is a property inside that class that exists throughout the lifetime of an object. It is used to define the relationship between classes. It is a variable of a primitive type. It is a variable that can store values of multiple types. It allows a variable of a super class type to be assigned an instance of a subclass type. It is used to describe that a class…
HAS-A relationship between the classes is shown through. A - Inheritance B - Container classes C - Polymorphism D - None of the above.
Inheritance is an OOP concept such that a class can be defined in different ways, such as either being typecasted to itself (as a subclass) or any of its superclasses. True False
Polymorphism : Write a driver program that uses a AECar reference variable to point to three different types of classes, showing that inheritance is one mechanism for using polymorphism.
1. An inheritance principle is used to explore and extend the Course class. The UML of the Course is presented below: Course - courseName : String - sectionNumber : int - instructorName : String - numberOfStudentsEnrolled : int #Course() #Course(courseName : String) #Course(courseName : String, sectionNumber: int, instructorName : String) +getCapacity() : int +getCourseName() : String +setCourseName(courseName : String) : void +getSectionNumber() : int +setSectionNumber(sectionNumber : int) : void +getlnstructorName() : String +setlnstructorName(instructorName : String) : void +getNumberOfStudentsEnrolled() : int +toString(): String Part 1.1. Implement the abstract class Course strictly according to its UML one-to-one (do not include anything extra, do not miss any data fields or methods). Add comments to your program and mark where data fields, constructors, getters, setters and toString() are located, and which method is abstract or static (if any). Note: No methods should have any…
What is the aim of building inheritance relationships across classes?
Distinguish the difference between declaring one class as a friend of another class (object aggregation) and declaring one class as a member of another class (membership aggregation) (object aggregation).
Classes in the same inheritance hierarchy typically belong in the same package. Select one: True False
Polymorphism allows for members (i.e. attributes and methods) to be inherited by subclasses. True False
The technique of packaging an objects attributes into a cohesive unit that can be used as an undivided entity is ____________. a. inheritance b. encapsulation c. polymorphism d. interfacing
In Chapter 10, the class clockType was designed to implement the time of day in a program. Certain applications, in addition to hours, minutes, and seconds, might require you to store the time zone. Derive the class extclockType from the class clockType by adding a member variable to store the time zone. Add the necessary member functions and constructors to make the class functional. Also, write the definitions of the member functions and the constructors. Finally, write a test program to test your class.