What will be the output of the following C++ code?
#include <iostream>
#include <string>
using namespace std;
class A
{
mutable int a;
public:
int assign(int i) const {
a = i;
}
int return_value() const {
return a;
}
};
int main(int argc, char const *argv[])
{
A obj;
obj.assign(5);
cout<<obj.return_value();
}
#include <iostream>
#include <string>
using namespace std;
class A
{
mutable int a;
public:
int assign(int i) const {
a = i;
}
int return_value() const {
return a;
}
};
int main(int argc, char const *argv[])
{
A obj;
obj.assign(5);
cout<<obj.return_value();
}A. 5
B. Error
C. Segmentation fault
D. Undefined value
Answer: Option A
Related Questions on Classes and Objects in C plus plus
A. A collection of functions
B. A reserved keyword in C++
C. A blueprint for creating objects
D. A way to declare arrays of data
Which keyword is used to create an object of a class in C++?
A. new
B. create
C. object
D. None of the above
A. A reserved keyword in C++
B. An instance of a class
C. A way to declare arrays of data
D. None of the above
What is the purpose of a constructor in C++?
A. To hide the implementation details of a class
B. To create multiple instances of a class
C. To initialize the object's data members
D. To destroy the object

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