C++ miscellaneous MCQ question and answer with solution | C++ Programimg MCQs

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21.
Subsequent elements are moved in terms of . . . . . . . . when an element in inserted in vector?

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23.
What will be the output of the following C++ code?
#include <iostream>
#include <string>
using namespace std;
int main()
{
	cout<<is_array<int>::value;
	cout<<is_array<char[10]>::value;
	cout<<is_array<string>::value;
	return 0;
}

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25.
What will be the output of the following C++ code?
#include <iostream>
#include <exception>
using namespace std;
void myunexpected () 
{
    cout << "unexpected handler called\n";
    throw;
}
void myfunction () throw (int,bad_exception) 
{
    throw 'x';
}
int main (void)
{
    set_unexpected (myunexpected);
    try 
    {
        myfunction();
    }    
    catch (int) 
    { 
        cout << "caught int\n"; 
    }
    catch (bad_exception be) 
    { 
        cout << "caught bad_exception\n"; 
    }
    catch (...) 
    { 
        cout << "caught other exception \n"; 
    }
    return 0;
}

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26.
What will be the output of the following C++ code?
#include <iostream>
using namespace std;
template<typename type>
class TestVirt
{
    public:
    virtual type TestFunct(type Var1)
    {
        return Var1 * 2;
    }
};
int main()
{
    TestVirt<int> Var1;
    cout << Var1.TestFunct(100) << endl;
    return 0;
}

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29.
What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class stu
{
    protected:
    int rno;
    public:
    void get_no(int a)
    {
        rno = a;
    }
    void put_no(void)
    {
    }
};
class test:public stu
{
    protected:
    float part1,part2;
    public:
    void get_mark(float x, float y)
    {
        part1 = x;
        part2 = y;
    }
    void put_marks()
    {
    }
};
class sports
{
    protected:
    float score;
    public:
    void getscore(float s)
    {
        score = s;
    }
    void putscore(void)
    {
    }
};
class result: public test, public sports
{
    float total;
    public:
    void display(void);
};
void result::display(void)
{
    total = part1 + part2 + score;
    put_no();
    put_marks();
    putscore();
    cout << "Total Score=" << total << "\n";
}
int main()
{
    result stu;
    stu.get_no(123);
    stu.get_mark(27.5, 33.0);
    stu.getscore(6.0);
    stu.display();
    return 0;
}

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