C++ interview questions part 8
C++ interview questions part 8
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. Which type of relationship is modelled by Association?
Correct Answer is : Bit corresponding to an argument is set to 1
2. What is the syntax of class template?
Correct Answer is : Used to make a bit(s) 0 in a bitset
3. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
public:
A(){
cout<<"Created\n";
}
~A(){
cout<<"Destroyed\n";
}
};
int main(int argc, char const *argv[])
{
A a;
return 0;
}
Correct Answer is : All bits are set to 0 in a bitset
4. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
public:
A(){
cout<<"Created\n";
}
~A(){
cout<<"Destroyed\n";
}
};
int main(int argc, char const *argv[])
{
A a;
return 0;
}
Correct Answer is : Bit corresponding to an argument is set to 0
5. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
public:
A(){
cout<<"Created\n";
}
~A(){
cout<<"Destroyed\n";
}
};
int main(int argc, char const *argv[])
{
A a1;
A a2;
A a3;
return 0;
}
Correct Answer is : Used to flip bit(s) in a bitset
6. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
public:
T func(T a, T b){
return a/b;
}
};
int main(int argc, char const *argv[])
{
A a1;
cout<
Correct Answer is : All bits are flipped in a bitset
Correct Answer is : All bits are flipped in a bitset
7. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
public:
T func(T a, T b){
return a/b;
}
};
int main(int argc, char const *argv[])
{
A a1;
cout<
Correct Answer is : Bit corresponding to argument bit is flipped
Correct Answer is : Bit corresponding to argument bit is flipped
8. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
public:
T func(T a, T b){
return a/b;
}
};
int main(int argc, char const *argv[])
{
A a1;
cout<
Correct Answer is : 1110001
Correct Answer is : 1110001
9. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
T a;
public:
A(){}
~A(){}
};
int main(int argc, char const *argv[])
{
A a1;
A a2;
A a3;
cout<
Correct Answer is : 11111000
Correct Answer is : 11111000
10. How the template class is different from the normal class?
Correct Answer is : 1011
11. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
T a;
U b;
public:
A(T a_val, char b_val = '$'){
this->a = a_val;
this->b = b_val;
}
void print(){
cout< a1(5,10);
A a2(5);
A a3(10.0);
return 0;
}
Correct Answer is : ~
12. What is the output of the following C++ code?
#include
#include
#include
using namespace std;
template
class A
{
T a;
U b;
public:
A(T a_val, char b_val = '$'){
this->a = a_val;
this->b = b_val;
}
void print(){
cout< a1(5,10);
A a2(5);
A a3(10.0);
a1.print();
a2.print();
a3.print();
return 0;
}
Correct Answer is : &
13. How many template parameters are allowed in template classes?
Correct Answer is : |
14. How many specifiers are present in access specifiers in class?
Correct Answer is : Yes
15. Which is used to define the member of a class externally?
Correct Answer is : Yes
16. Which other keywords are also used to declare the class other than class?
Correct Answer is : std::vector
17. What is the output of this program?
#include 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; }
Correct Answer is : std::vector
18. What is the output of this program?
#include 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; }
Correct Answer is : FALSE
19. Which of the following is a valid class declaration?
Correct Answer is : FALSE
20. The data members and functions of a class in C++ are by default ____________
Correct Answer is : bool value evaluates to false
