11. What will be the output of the following C++ code?
#include <iostream>
#include <complex>
using namespace std;
int main()
{
complex<double> c_double(2, 3);
complex<int> c_int(4, 5);
c_double *= 2;
c_double = c_int;
cout << c_double;
return 0;
}
#include <iostream>
#include <complex>
using namespace std;
int main()
{
complex<double> c_double(2, 3);
complex<int> c_int(4, 5);
c_double *= 2;
c_double = c_int;
cout << c_double;
return 0;
}12. Operator overloading is . . . . . . . .
13. What do we need to do to pointer for overloading the subscript operator?
14. What will be the output of the following C++ code?
#include <iostream>
using namespace std;
int operate (int a, int b)
{
return (a * b);
}
float operate (float a, float b)
{
return (a / b);
}
int main ()
{
int x = 5, y = 2;
float n = 5.0, m = 2.0;
cout << operate (x, y);
cout << operate (n, m);
return 0;
}
#include <iostream>
using namespace std;
int operate (int a, int b)
{
return (a * b);
}
float operate (float a, float b)
{
return (a / b);
}
int main ()
{
int x = 5, y = 2;
float n = 5.0, m = 2.0;
cout << operate (x, y);
cout << operate (n, m);
return 0;
}15. What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class Box
{
public :
double length;
double breadth;
double height;
};
int main( )
{
Box Box1;
double volume;
Box1.height = 5;
Box1.length = 6;
Box1.breadth = 7.1;
volume = Box1.height * Box1.length * Box1.breadth;
cout << "Volume of Box1 : " << volume <<endl;
return 0;
}
#include <iostream>
using namespace std;
class Box
{
public :
double length;
double breadth;
double height;
};
int main( )
{
Box Box1;
double volume;
Box1.height = 5;
Box1.length = 6;
Box1.breadth = 7.1;
volume = Box1.height * Box1.length * Box1.breadth;
cout << "Volume of Box1 : " << volume <<endl;
return 0;
}16. Pick out the compound assignment statement.
17. Identify the correct statement.
18. What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class sample
{
int width, height;
public:
void set_values (int, int);
int area () {return (width * height);}
friend sample duplicate (sample);
};
void sample::set_values (int a, int b)
{
width = a;
height = b;
}
sample duplicate (sample rectparam)
{
sample rectres;
rectres.width = rectparam.width * 2;
rectres.height = rectparam.height * 2;
return (rectres);
}
int main ()
{
sample rect, rectb;
rect.set_values (2, 3);
rectb = duplicate (rect);
cout << rectb.area();
return 0;
}
#include <iostream>
using namespace std;
class sample
{
int width, height;
public:
void set_values (int, int);
int area () {return (width * height);}
friend sample duplicate (sample);
};
void sample::set_values (int a, int b)
{
width = a;
height = b;
}
sample duplicate (sample rectparam)
{
sample rectres;
rectres.width = rectparam.width * 2;
rectres.height = rectparam.height * 2;
return (rectres);
}
int main ()
{
sample rect, rectb;
rect.set_values (2, 3);
rectb = duplicate (rect);
cout << rectb.area();
return 0;
}19. What is the use of function call operator?
20. Pick the incorrect statement about inline functions in C++?
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