At which time does the static_cast can be applied?
When the inheritance is private, the private methods in base class are __________ in the derived class (in C++).
In C++, runtime polymorphism is achieved by
What is the syntax of friend function in C++?
What can be passed as a non-type template parameter during compile time?
From where is the template class derived?
Which keyword can be used in template in C++?
What is the output of this C++ program?
#include <iostream>
using namespace std;
namespace Box1
{
int a = 4;
}
namespace Box2
{
int a = 13;
}
int main ()
{
int a = 16;
Box1::a;
Box2::a;
cout << a;
return 0;
}
What is the output of this C++ program?
#include <iostream>
using namespace std;
class rect
{
int x, y;
public:
void val (int, int);
int area ()
{
return (x * y);
}
};
void rect::val (int a, int b)
{
x = a;
y = b;
}
int main ()
{
rect rect;
rect.val (3, 4);
cout << "rect area: " << rect.area();
return 0;
}
What is the output of this C++ program?
#include <iostream>
using namespace std;
class CDummy
{
public:
int isitme (CDummy& param);
};
int CDummy::isitme (CDummy& param)
{
if (¶m == this)
return true;
else
return false;
}
int main ()
{
CDummy a;
CDummy *b = &a;
if (b->isitme(a))
{
cout << "execute";
}
else
{
cout<<"not execute";
}
return 0;
}
What will be the output of this C++ program?
#include <iostream>
using namespace std;
int i;
class A
{
public:
~A()
{
i=10;
}
};
int foo()
{
i=3;
A ob;
return i;
}
int main()
{
cout << foo() << endl;
return 0;
}
What will be the output of the following C++ program?
#include<iostream>
using namespace std;
class X
{
public:
int x;
};
int main()
{
X a = {10};
X b = a;
cout << a.x << " " << b.x;
return 0;
}
What is the output of this C++ program(if size of int is 4 bytes)?
#include<iostream>
using namespace std;
class Test
{
static int x;
int *ptr;
int y;
};
int main()
{
Test t;
cout << sizeof(t) << " ";
cout << sizeof(Test *);
}
What is the output of the following C++ program?
#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 <<endl;
return 0;
}
What is the output of this C++ program?
#include <iostream>
using namespace std;
class Rect
{
int x, y;
public:
void set_values (int,int);
int area ()
{
return (x * y);
}
};
void Rect::set_values (int a, int b)
{
x = a;
y = b;
}
int main ()
{
Rect recta, rectb;
recta.set_values (5, 6);
rectb.set_values (7, 6);
cout << "recta area: " << recta.area();
cout << "rectb area: " << rectb.area();
return 0;
}
What is the output of this C++ program?
#include <iostream>
using namespace std;
class sample
{
private:
int var;
public:
void input()
{
cout << var;
}
void output()
{
cout << "Variable entered is ";
cout << var << "\n";
}
};
int main()
{
sample object;
object.input();
object.output();
object.var();
return 0;
}
What is the output of following C++ program?
#include<iostream>
using namespace std;
class Empty {};
int main()
{
cout << sizeof(Empty);
return 0;
}
What is the output of this C++ program(If int size is 4 bytes)?
#include<iostream>
using namespace std;
class base {
int arr[10];
};
class b1: public base { };
class b2: public base { };
class derived: public b1, public b2 {};
int main(void)
{
cout << sizeof(derived);
return 0;
}
What is the output of this C++ program?
#include<iostream>
using namespace std;
class P {
public:
void print() { cout <<"Inside P"; }
};
class Q : public P {
public:
void print() { cout <<"Inside Q"; }
};
class R: public Q { };
int main(void)
{
R r;
r.print();
return 0;
}
What is the output of this C++ program?
#include<iostream>
using namespace std;
class Base {};
class Derived: public Base {};
int main()
{
Base *bp = new Derived;
Derived *dp = new Base;
}
