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Topic :: Destructor





Destructor Interview Questions
Questions Answers Views Company eMail

What is virtual destructor ans explain its use?

1173

Explain virtual destructor?

1257

What are virtual destructures?

1183

What are constructor and destructor in PHP?

1188

Differentiate between a constructor and a destructor in c++.

1058

Explain the benefits of destructive testing.

1100

What is a destructor in c#?

1033

What are virtual constructors/destructors?

1079

What's the order in which the local objects are destructed?

1314

What's the order in which the objects in an array are destructed?

1471

What are the __construct() and __destruct() methods in a php class?

1015

What is constructor and destructor?

1024

What is constructor and destructor in c++?

1172

How are destructors defined in java?

1093

In which order the destructor is called for an inherited class?

1038




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; }

2677


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

2220


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

5065


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?

5944


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?

1027


What is the purpose of a constructor? Destructor?

1202