C-Plus-Plus Questions

March 21, 2023
| No Comments
0 votes, 0 avg
191

C-Plus-Plus Questions

1 / 15

1. What will be the output of the following C++ code?

#include 
using namespace std; 
template 
int arrMin(T arr[], int n)
{
   int m = max;
   for (int i = 0; i < n; i++)
      if (arr[i] < m)
         m = arr[i];
 
   return m;
}
 
int main()
{
   int arr1[]  = {10, 20, 15, 12};
   int n1 = sizeof(arr1)/sizeof(arr1[0]);
 
   char arr2[] = {1, 2, 3};
   int n2 = sizeof(arr2)/sizeof(arr2[0]);
 
   cout << arrMin(arr1, n1) << endl;
   cout << arrMin(arr2, n2);
   return 0;
}

2 / 15

2. Find the output of the following program.

main(){
  Float a = 5;
  switch(a){
     Case 5: cout <<”Interviewbit”;
     Default: cout <<”Scaler”;
  }
}

3 / 15

3. What did we call an array of the one-dimensional array?

4 / 15

4. How can one implement the run-time Polymorphism in the C++ programming language?

5 / 15

5. Would destructor be called, if yes, then due to which vector? 

#include 
#include 
using namespace std;
 
class a
{
public :
    ~a()
    {
        cout << "destroy";
    }
};
int main()
{
   vector  *v1  = new vector;
   vector  *v2  = new vector;
   return 0;
}

6 / 15

6. When will we use the function overloading?

7 / 15

7. What is the output of the given program?

#include < stdio.h >  
using namespace std;  
int main()  
{  
int array[] = {10, 20, 30};  
cout << -2[array];  
return 0;  
}

8 / 15

8. What is C++?

9 / 15

9. Which of the following is used for comments in C++?

10 / 15

10. What is Vtable?

11 / 15

11. What will be the output of the following C++ code?

#include 
    using namespace std;
    int main()
    {
        int a = 5;
        float b;
        cout << sizeof(++a + b);
        cout << a;
        return 0;
    }

12 / 15

12. Find the output of below program:- 

int main() 
{
int i = 0, x = 0;

do
{
    if(i % 5 == 0)
    {
       cout<

13 / 15

13. what will be the output of the given program?

class base
{
public:
       base()
       {          
           cout<<"BCon";
       }
       ~base()
       {
	   cout<<"BDest ";
       }
};
class derived: public base
{
public:
       derived()
       {     cout<<"DCon ";
       }
       ~derived()
       {     cout<<"DDest ";
       }
};

int main()
{
derived object;
return 0; 
}

14 / 15

14. Predict the output of following C++ program.

#include
using namespace std;
 
union A {
  int a;
  unsigned int b;
  A() { a = 10; }
  unsigned int getb() {return b;}
};
 
int main()
{
    A obj;
    cout << obj.getb();
    return 0;
}

15 / 15

15. The correct statement for a function that takes pointer to a float, a pointer to a pointer to a char and returns a pointer to a pointer to a integer is ____________

Your score is

The average score is 30%

 LinkedIn Facebook VKontakte
0%

By WordPress Quiz plugin
Questions, Quiz