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Topic :: Destructor





Destructor Interview Questions
Questions Answers Views Company eMail

What is constructors and destructors?

989

Tell me what are the __construct() and __destruct() methods in a php class?

1065

Explain which kind of volcano is the most destructive?

837

What is destructor example?

1125

What is destructor give example?

1126

Why is destructor used?

1085

Can a destructor be called directly?

1141

Can destructor be overloaded?

1102

What is the difference between a constructor and a destructor?

1357

What is destructor oops?

1158

What is php destruct?

1025

Why destructor is not used in java?

1039

How many destructors can a class have?

1094

What is destructor in oop?

1093

What is difference between destructor and finalize?

1007




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