Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.The Final Keyword | Inheritance Overview
C++ OOP
course content

Зміст курсу

C++ OOP

C++ OOP

1. Fundamentals of OOP
Introduction to Object-Oriented ProgrammingWhy use Object-Oriented Programming?Class Creation SyntaxAttributes of the ClassMethods of the ClassStatic Members of The ClassThe This KeywordClasses and Objects Overview
2. Constructors and Destructors
What is a Constructor of the ClassConstructor and AttributesConstructor Initialization ListInitialization List PracticeConstructor DelegationConstructor Delegation PracticeWhat is a Destructor of the ClassCopy ConstructorsConstructors and Destructors Practice
3. Encapsulation Overview
Introduction to EncapsulationAccess Modifiers KeywordsAccess Modifiers PracticeAccessor and Mutator MethodsAccess and Mutator PracticeSegmentation and AggregationThe Friend Keyword
4. Inheritance Overview
Introduction to InheritanceAccess Modifiers in InheritanceMulptiple InheritanceConstructor and Destructor in InheritanceDiamond InheritanceThe Final Keyword
5. Polymorphism Overview
Introduction to PolymorphismVirtual and Override KeywordsPure Virtual MethodOperator OverloadingSummary and Overview

book
The Final Keyword

The final keyword plays a crucial role in defining classes and controlling inheritance hierarchies. It provides developers with a powerful mechanism to restrict certain aspects of class design.

The usage of final keyword

When a class is declared as final, it indicates that the class cannot be subclassed further. In other words, it serves as the end point of the inheritance hierarchy, disallowing from deriving it.

cpp

Example

copy

              
12345678910

            
class Example final {
    // Class members and methods
};

//  cannot derive from final base Example
class ExtendedExample: public Example {
    // Class members and methods
};

int main() {}

This feature is especially valuable when you aim to restrict the modification or extension of a specific class, or when you prefer utilizing your class using composition rather than inheritance. There is also other benefits to using it.

What does the `final` keyword do when applied to a class?

What does the final keyword do when applied to a class?

Виберіть правильну відповідь

Все було зрозуміло?

Як ми можемо покращити це?

Дякуємо за ваш відгук!

Секція 4. Розділ 6
We're sorry to hear that something went wrong. What happened?
some-alt