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Topic :: Destructor





Destructor Interview Questions
Questions Answers Views Company eMail

What is the purpose of a constructor? Destructor?

Amazon,

1202

Mention the default functions in C++, how would you detect that error has occurred inside the constructor and destructor.

Adobe,

1067

In case of inheritance what is the execution order of constructor and destructor?

Agilent,

1190

What are destructors in C#?

TryTechnicals Pvt Ltd,

1 1644

what is diffrence constructor and destructor in vb

MCN Solutions,

1028

When does a class need a virtual destructor?

Flextronics,

1070

What is the reason behind using constructors and destructors?

HCL,

1116

Does .NET runtime offer Deterministic Destruction or not?

HCL,

1076

what is difference between destruct or and garbage collection ?

Wipro,

996

Can you declare a C++ type destructor in C# like ~MyClass() ?

1 1438

Explain about Destructor method?

1020

What is the use of destructive method?

Tech Mahindra,

1019

Define Destructor?

1017

What does it mean to declare a destructor as static?

1156

What is Destructor in C++?

1256




Related Topics


Un-Answered Questions { Destructor }

Does .net supports destructors concept?

2119


Question In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Question Submitted By :: Sunil Kumar I also faced this Question!! Rank Answer Posted By Re: In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Answer # 1 use copy constructors 0 Shanthila There is something to be taken care in destructor, in copy constructor, suppose the memory is assigned to the embedded member object pointer with the parameter passed value, but if some other objects of different class also are pointing to this memory, then if some one deletes the object then this class member pointer object will become dangling, or if the object is not deleted properly then there will be memory leak. Please suggest the design change required to handle or avoid this situation

2185


what are constructors and destructors?

2202


what mean void creat_object?in public class in this code class A{ public: int x; A(){ cout << endl<< "Constructor A";} ~A(){ cout << endl<< "Destructor A, x is\t"<< x;} }; void create_object(); void main() { A a; a.x=10; { A c; c.x=20; } create_object(); } void create_object() { A b; b.x=30; }

2676


Always declare destructors to be virtual"?????? why this is so needed?????

2218


Why is it so that we can have virtual constructors but we cannot have virtual destructors?

5063


what is the difference between C and C++? what is the difference between scanf and gets? what is mean by extern what is the use of it? what will happen if i say delete this> Difference between C structure and C++ structure? What is the difference between overloading and overridding? Explain the need for "virtual Destructor" Can we have "virtual Constructors"? What is the different types of polymorphism> What is virtual functions? How to implement virtual function in "C"? What are the different types of storage classes?

2226


There are two base class B1,B2 and there is one class D which is derived from both classes, Explain the flow of calling constructors and destructors when an object of derived class is instantiated.

2056


Why are the destructors for base class and derived class called in reverse order when the program exits

2286


Destructors CANNOT be implemented in which one of the following?

5943


write a C++ program for booking using constructor and destructor.

2595


What happens if an exception is throws from an object's destructor?

1100


what is a destructor?

1051


What are virtual destructors?

1025


What is the purpose of a constructor? Destructor?

1202