What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class A
{
public:
int x;
A(int n = 0) : x(n) {};
int& operator[](int n)
{
cout << "0" ;
return x;
}
int operator[](int n) const
{
cout << "1" ;
return x;
}
};
void foo(const A& a)
{
int z = a[2];
}
int main()
{
A a(7);
a[3] = 8;
int z = a[2];
foo(a);
return 0;
}
#include <iostream>
using namespace std;
class A
{
public:
int x;
A(int n = 0) : x(n) {};
int& operator[](int n)
{
cout << "0" ;
return x;
}
int operator[](int n) const
{
cout << "1" ;
return x;
}
};
void foo(const A& a)
{
int z = a[2];
}
int main()
{
A a(7);
a[3] = 8;
int z = a[2];
foo(a);
return 0;
}A. 110
B. 111
C. 011
D. 001
Answer: Option D
This Question Belongs to C Plus Plus Programming >> Classes And Objects In C Plus Plus
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
Join The Discussion