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What happens to public members of a base class when it is inherited publicly in a derived class?
What happens to public members of a base class when it is inherited publicly in a derived class?
What is the access level of public members of a base class when inherited privately in a derived class?
What is the access level of public members of a base class when inherited privately in a derived class?
In protected inheritance, what is the access level of public members of a base class in the derived class?
In protected inheritance, what is the access level of public members of a base class in the derived class?
How can a creator of a derived class make public members of a base class visible again after private derivation?
How can a creator of a derived class make public members of a base class visible again after private derivation?
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What is the access level of protected members of a base class when it is inherited publicly in a derived class?
What is the access level of protected members of a base class when it is inherited publicly in a derived class?
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What happens to private members of a base class in a derived class, regardless of the access specifier?
What happens to private members of a base class in a derived class, regardless of the access specifier?
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What type of inheritance is used in the declaration 'class ColoredPoint : private Point'?
What type of inheritance is used in the declaration 'class ColoredPoint : private Point'?
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Which access modifier allows the members of the base class to be accessible by member functions of the derived class but not accessible if they are inherited in another derived class?
Which access modifier allows the members of the base class to be accessible by member functions of the derived class but not accessible if they are inherited in another derived class?
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What is the effect of using the 'using' keyword in the declaration 'using Point::print;'?
What is the effect of using the 'using' keyword in the declaration 'using Point::print;'?
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What is the difference between public and private inheritance?
What is the difference between public and private inheritance?
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In the declaration 'class Derived : private Base', what is the access modifier of the members of the base class in the derived class?
In the declaration 'class Derived : private Base', what is the access modifier of the members of the base class in the derived class?
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What is the primary relationship represented by Inheritance in Object-oriented design?
What is the primary relationship represented by Inheritance in Object-oriented design?
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What is the result of generalization-specialization in inheritance?
What is the result of generalization-specialization in inheritance?
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What is the characteristic of a special class in inheritance?
What is the characteristic of a special class in inheritance?
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What is an example of a general type of class in inheritance?
What is an example of a general type of class in inheritance?
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What is the relationship between a dean and a professor in inheritance?
What is the relationship between a dean and a professor in inheritance?
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What is the difference between a laptop and a computer in inheritance?
What is the difference between a laptop and a computer in inheritance?
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Study Notes
Inheritance in Object-Oriented Programming
- Inheritance represents the "is-a" or "kind-of" relationship between classes.
- It allows for the creation of more specific types (classes) from general types (classes).
Access Specification in Derived Classes
- Public inheritance: public members of the base class remain public, and protected members remain protected.
- Protected inheritance: both public and protected members of the base class become protected in the derived class.
- Private inheritance: both public and protected members of the base class become private in the derived class.
Accessibility of Inherited Members
- Private members of the base class are not accessible in the derived class.
- Protected members of the base class are accessible in the derived class, but not in further derived classes (grandchild classes).
- Public members of the base class are accessible in the derived class and further derived classes (grandchild classes).
Redefining Access Specifications
- Private members of the base class can be made public again in the derived class using the
usingkeyword. - This makes the private members accessible to users of the derived class.
Examples of Inheritance
- "A desktop PC is a kind of computer" - desktop PC inherits common properties and abilities from the computer class.
- "A tablet is a kind of computer" - tablet inherits common properties and abilities from the computer class and adds unique features.
- "A dean is a kind of professor" - dean inherits common properties and abilities from the professor class and adds additional administrative duties.
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Description
Test your understanding of inheritance in C++ with this quiz. Learn how public, protected, and private members are inherited in derived classes and how they can be accessed. Improve your C++ programming skills with this quiz!
