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Welcome to the Classes and Operator Overloading in C++ MCQs Page

Dive deep into the fascinating world of Classes and Operator Overloading in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes and Operator Overloading in C++, a crucial aspect of Object Oriented Programming Using C++. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes and Operator Overloading in C++, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming Using C++.

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Check out the MCQs below to embark on an enriching journey through Classes and Operator Overloading in C++. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming Using C++.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Classes and Operator Overloading in C++. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Classes and Operator Overloading in C++ MCQs | Page 7 of 39

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Q61.
What is the output of this program?
    #include <iostream>
    #include <complex>
    using namespace std;
    int main() 
    {
       complex<double> c1(4.0, 16.0), c2;
       c2 = pow(c1, 2.0);
       cout << c2;
       return 0;          
    }
Discuss
Answer: (a).(-240, 128)
Q62.
What is the output of this program?
    #include <iostream>
    #include <complex>
    using namespace std;
    int main()
    {
        complex<double> c_double(2, 3);
        complex<int> c_int(4, 5);
        c_double *= 2;
        c_double = c_int;
        cout << c_double;
        return 0;
    }
Discuss
Answer: (b).(4, 5)
Q63.
What is the output of this program?
    #include <iostream>
    #include <complex>
    using namespace std;
    int main()
    {
        complex<int> i(2, 3);
        i = i * 6 / 3;
        cout << i;
        return 0;
    }
Discuss
Answer: (a).(4, 6)
Q64.
What is the output of this program?
    #include <iostream>
    #include <complex>
    using namespace std;
    int main()
    {
       complex<double> c1(4.0,3.0);
       cout << "c1: " << c1;
       complex<float> c2(polar(5.0,0.75));
       cout << c1 + complex<double>(c2.real(),c2.imag());
       return 0;
    }
Discuss
Answer: (a).c1: (4,3)(7.65844,6.40819)
Q65.
What is the output of this program?
    #include <iostream>
    #include <complex>
    using namespace std;
    int main()
    {
        complex<double> c1(4.0, 3.0);
        complex<float> c2(polar(5.0, 0.75));
        cout  << (c1 += sqrt(c1)) << endl;
        return 0;
    }
Discuss
Answer: (b).(6.12132, 3.70711)
Q66.
Which of the following is not a function of complex values?
Discuss
Answer: (d).cartesian
Q67.
What is the output of this program?
    #include <iostream>
    #include <complex>
    using namespace std;
    int main ()
    {
        complex<double> mycomplex (20.0, 2.0);
        cout << imag(mycomplex) << endl;
        return 0;
    }
Discuss
Answer: (a).2
Q68.
What is the return type of the conversion operator?
Discuss
Answer: (d).no return type
Discuss
Answer: (a).result of the type conversion is a valid
Q70.
How many parameters does a conversion operator may take?
Discuss
Answer: (a).0

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