Back-End Programming Exam  >  Back-End Programming Videos  >  Learn to Program with C++: Beginner to Expert  >  C++ Programming Tutorials - Derived Class Constructors and Destructors

C++ Programming Tutorials - Derived Class Constructors and Destructors Video Lecture | Learn to Program with C++: Beginner to Expert - Back-End Programming

73 videos|7 docs|23 tests

FAQs on C++ Programming Tutorials - Derived Class Constructors and Destructors Video Lecture - Learn to Program with C++: Beginner to Expert - Back-End Programming

1. What are derived class constructors in C++?
Ans. Derived class constructors in C++ are special member functions that are used to initialize the derived class objects. They are called when an object of the derived class is created and are responsible for initializing the inherited members from the base class.
2. How are derived class constructors different from base class constructors in C++?
Ans. Derived class constructors are different from base class constructors in C++ as they not only initialize the derived class members but also the inherited members from the base class. They can also call the base class constructor explicitly using the initialization list.
3. Can a derived class constructor have a different number of arguments than the base class constructor in C++?
Ans. Yes, a derived class constructor can have a different number of arguments than the base class constructor in C++. However, it is important to note that the derived class constructor must explicitly call the base class constructor in its initialization list to initialize the inherited members.
4. What happens if the derived class constructor does not explicitly call the base class constructor in C++?
Ans. If the derived class constructor does not explicitly call the base class constructor in C++, the default constructor of the base class will be called automatically. However, if the base class does not have a default constructor and the derived class constructor does not explicitly call any other base class constructor, a compilation error will occur.
5. Can a derived class destructor be virtual in C++?
Ans. Yes, a derived class destructor can be virtual in C++. When the base class destructor is declared as virtual, it allows the derived class destructor to be called polymorphically when deleting a derived class object through a base class pointer. This ensures that the destructors of both the base and derived classes are called in the correct order.
73 videos|7 docs|23 tests
Explore Courses for Back-End Programming exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Free

,

pdf

,

mock tests for examination

,

C++ Programming Tutorials - Derived Class Constructors and Destructors Video Lecture | Learn to Program with C++: Beginner to Expert - Back-End Programming

,

shortcuts and tricks

,

MCQs

,

Extra Questions

,

C++ Programming Tutorials - Derived Class Constructors and Destructors Video Lecture | Learn to Program with C++: Beginner to Expert - Back-End Programming

,

ppt

,

video lectures

,

Viva Questions

,

past year papers

,

Important questions

,

practice quizzes

,

study material

,

Sample Paper

,

Objective type Questions

,

Previous Year Questions with Solutions

,

Exam

,

C++ Programming Tutorials - Derived Class Constructors and Destructors Video Lecture | Learn to Program with C++: Beginner to Expert - Back-End Programming

,

Summary

,

Semester Notes

;