Which constructor function is designed to copy object of same class type?A. Copy constructorB. Create constructorC. Object constructorD. Dynamic constructor
Question
Which constructor function is designed to copy object of same class type?A. Copy constructorB. Create constructorC. Object constructorD. Dynamic constructor
Solution
The correct answer is A. Copy constructor.
A copy constructor in C++ is a member function which initializes an object using another object of the same class. A copy constructor has the following general function prototype:
ClassName (const ClassName &old_obj);
Here, ClassName is the name of the class. The constructor should be written in the public section of the class. It is used to copy objects of the same class type. This is especially useful in C++ because it allows objects to be copied in a way that can be controlled by the programmer.
Similar Questions
When a copy constructor may be called?Option 1When an object is constructed based on another object of the same classOption 2When an object of the class is passed (to a function) by value as an argument.Option 3When compiler generates a temporary object.Option 4All of these
Assume class DEMO. Which of the following statement(s) responsible to invoke copy constructor?1. DEMO D2(D1); // Here D1 is an already created object of class DEMO2. D2 = D1; // Here D1, D2 are already created objects of class DEMOThis problem has only one correct answerOnly 1Only 2Both 1 and 2
A copy constructor is used to:Create a deep copy of an existing object.Modify an existing object.Call the destructor of another object.Access private members of another object.
What is a constructor in Python? A function that initializes an objectA function that deletes an objectA function that copies an objectA function that returns an object
What is a constructor?1 pointA function that is called to create an instance of an object. An instance of a class.A specific object that has been created using the class name.An object literal
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