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Question: 241

If no handler at any level catches the exception, terminate() will be called and program will terminate

(A) True
(B) False

Compiler

Level: Practitioner

Category of MCQ: exceptions in C++

Question: 242

void some_function() throw ();

How does above function behaves?

(A) Function declaration has error
(B) Behaviour is unknown
(C) Function will throw only standard exceptions defined in <exception>
(D) Function will not throw any exception

Compiler

Level: Practitioner

Category of MCQ: exceptions in C++

Question: 243

In C++ only synchronous exception can be handled

(A) True
(B) False

Compiler

Level: Beginner

Category of MCQ: loops in C++

Question: 244

#include<iostream>
using namespace std;

class Country{
private: int population;

public: void setPopulation(int pop){
             this->population = pop;
          }
         int getPopulation(){
             return this->population;
         }
};

class USA: private Country{

};

int main(){
USA obj;
obj.setPopulation(100);
cout<<obj.getPopulation();
return 0;
}

(A) 100
(B) 0
(C) Compilation Error
(D) Garbage Value is printed

Compiler

Level: Expert

Category of MCQ: inheritance in C++

Question: 245

#include<iostream>
#include<string.h>
using namespace std;

int main()
{
    char one[]="one";
    char two[]="two";
    
    if(one==two){
        cout<<"Equal";
    }
    
    if(strcmp(one, two)==0){
        cout<<"Equal";
    }
    else
    {
        cout<<"NotEqual";
    }

    return 0;
}

(A) Equal
(B) EqualEqual
(C) EqualNotEqual
(D) NotEqual

Compiler

Level: Practitioner

Category of MCQ: conditional in C++

Question: 246

Can we have nested namespaces in C++?

(A) Yes
(B) No

Compiler

Level: Beginner

Category of MCQ: namespace in C++

Question: 247

What should be the location of "using namespace std;" in c++ code?

(A) Before all #include
(B) After #include<iostream>
(C) In middle of #includes
(D) After all #inludes

Compiler

Level: Beginner

Category of MCQ: namespace in C++

Question: 248

//What is different between these two lines?
 using namespace std;
 using std::cout;

(A) Using the entire namespace, using only single name from namespace
(B) There is no difference
(C) We can't use only cout from std namespace

Compiler

Level: Beginner

Category of MCQ: namespace in C++

Question: 249

#include<iostream>
#define killer using

killer namespace std;

int main(){
    std::cout<<"CppBuzz.com";
    return 0;
}

(A) Runtime Error
(B) Compilation Erro
(C) Nothing is printed
(D) CppBuzz.com

Compiler

Level: Beginner

Category of MCQ: namespace in C++

Question: 250

//How this code would behave?

#include<iostream>
#include<exception>
using namespace std;

class cppbuzz{
    
public:
    cppbuzz(){
        cout<<"constructor.";
        int a; 
        throw a;
    }
    ~cppbuzz(){
        cout<<"destructor.";
    }
};

int main()
{
    cppbuzz *ptr = new cppbuzz();
    delete ptr;

return 0;
}

(A) Program is terminated without printing anything on console
(B) Prints 'constructor' and then it is terminated
(C) constructor.destructor. but ptr is never freed
(D) constructor.destructor. And ptr is freed

Compiler

Level: Practitioner