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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 14 of 39

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Q131.
What is the output of this program?
#include <iostream>
    using namespace std;
    int main()
    {
        int a, b;
        int* c;
        c = &a;
        a = 200;
        b = 200;
        *c = 100;
        b = *c;
        cout << *c << " " << b;
        return 0;
    }
Discuss
Answer: (d).100 100
Q132.
What is the output of this program?
    #include <iostream>
    using namespace std;
    int main()
    {
        int x;
        int *p;
        x = 5;
        p = &x;
        cout << *p;
        return 0;
    }
Discuss
Answer: (a).5
Q133.
What is the output of this program?
    #include <iostream>
    using namespace std;
    int main() 
    {
        int x = 9;
        int* p = &x;
        cout << sizeof(p);
        return 0;
    }
Discuss
Answer: (c).Depends on compiler
Discuss
Answer: (b).lvalue equivalent to the value at the pointer address
Discuss
Answer: (a).The NULL pointer dereference occurs where a pointer that is expected to be a valid address but instead is equal to NULL
Q136.
Which operator works only with integer variables?
Discuss
Answer: (c).both increment & decrement
Q137.
How many types are there in increment/decrement operator?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q138.
What is the output of this program?
    #include <stdio.h> 
    using namespace std;
    int main()
    {
        int a = 21;
        int c ;
        c = a++;
        cout << c;  
        return 0;
    }
Discuss
Answer: (a).21
Q139.
What is the output of this program?
    #include <stdio.h> 
    using namespace std;
    int main()
    {
        int x = 5, y = 5;
        cout << ++x << --y << endl;
        return 0;
    }
Discuss
Answer: (b).64
Q140.
What is the output of this program?
    #include <stdio.h> 
    using namespace std;
    int main()
    {
        int x = 5, y = 5, z;
        x = ++x; y = --y;
        z = x++ + y--;
        cout << z;
        return 0;
    }
Discuss
Answer: (a).10

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