Interested to Buy Any Domain ? << Click Here >> for more details...
What is virtual destructor? Why?
- 3 Answers
- 7502 Views
- Agile Software, College School Exams Tests, CSC, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sagarika patra
When a destructor is declared as virtual in the base class
is known as virtul destructor.
Whenever any object of derived class of base type is freed
(using delete operator),the destructor of the derived class
is called and the memory allocated by derived class
variables are freed ,leaving the memory allocated by the
base class variables as unfreed.
Hence by declaring the base class destructor as
virtual,both the destructor will called in order.
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / mugdha taru
virtual destructor are those who can not override while
redefining derived class.
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / riya piyush jain
In object-oriented programming, a destructor (sometimes
shortened to dtor) is a method which is automatically
invoked when the object is destroyed. Its main purpose is
to clean up and to free the resources which were acquired
by the object along its life cycle and unlink it from other
objects or resources invalidating any references in the
process. The use of destructors is key to the concept of
Resource Acquisition Is Initialization.
| Is This Answer Correct ? | 4 Yes | 8 No |
c++ is a purely oop concept?
What is stream in oop?
difference between abstraction and encapsulation with progarammatic eg. hi,just recently i went for an interview .The interviewer asked what is the difference between abstraction and encapsulation with programmatic eg. I gave the answer as encapsulation mean hiding the relevant data which is not useful for the user, eg a electric fan .hiding the information how the electricity is converted into machanical energy. abtraction showing only the relevant data to the user eg electric fan. it look ,its color ,it design etc only relevant data. Then the interviewer asked me, give me some programmic eg .I Said Let assume a web form having control like textbox,button etc. The user can view textbox,button etc this is the eg of abstraction and when the user click on the button how he is redirected is not known by the user is the eg of the encapsulation. Am I Correct .was the answer given by me is perfect .now i am planing to go for an another interview should i give the same answer.IF not please suggest me a better answer.with some good eg Please help
what is difference b/w object based and object oriented programming language?
18 Answers Chaitanya, College School Exams Tests, Educomp, IBM, Infosys, Telko,
How do you explain polymorphism?
why c++ is a highlevel language
3 Answers Satyam, Tech Mahindra,
What do we mean by a hidden argument in C++?
What is difference between class and object with example?
WHAT IS THE ACTUAL DEFINATION OF OBJECT AND THE CLASS IN ONE SINGLE LINE WHICH THE INTERVIEWER WANT TO LISTEN.
How is exception handling carried out in c++?
how much classes are used in c++
can main method be overloaded...??? How..????
STL 
