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Welcome to the Strings,Streams and Numerics in C++ MCQs Page

Dive deep into the fascinating world of Strings,Streams and Numerics in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Strings,Streams and Numerics 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 Strings,Streams and Numerics 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 Strings,Streams and Numerics 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 Strings,Streams and Numerics in C++. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Strings,Streams and Numerics in C++ MCQs | Page 17 of 21

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Q161.
What is the output of this program?
    #include <cstdlib>
    #include <iostream>
    using namespace std;
    int main()
    {
        int ran = rand();
        cout << ran << endl;
    }
Discuss
Answer: (c).0โ€‹ to RAND_MAX
Q162.
What is the output of this program?
    #include <cstdlib>
    #include <iostream>
    using namespace std;
    int main()
    {
        cout << RAND_MAX << endl;
    }
Discuss
Answer: (c).Depends on the compiler
Q163.
What is the output of this program?
    #include <stdio.h>
    #include <stdlib.h>
    #include <time.h>
    int main ()
    {
        srand (time(NULL));
        printf ("Random number: %d\n", rand() % 100);
        srand (1);
        return 0;
    }
Discuss
Answer: (d).Any number from 0 to 99
Q164.
What is the output of this program?
    #include <cstdlib>
    #include <ctime>
    #include <iostream>
    using namespace std;
    int main()
    {
        srand((unsigned)time(0));
        int ran;
        for (int i = 0; i < 2; i++)
        {
            ran = (rand() % 10) + 1;
            cout << ran;
        }
    }
Discuss
Answer: (c).Any two number from 1 to 10
Q165.
What is the output of this program?
    #include <iostream>
    #include <ctime>
    #include <cstdlib>
    using namespace std;
    int main()
    {
        srand((unsigned)time(0));
        int ran;
        int low = 1, high = 10;
        int range = (high - low) + 1;
        for(int index = 0; index < 1; index++)
        {
            ran = low + int(range * rand() / (RAND_MAX + 1.0));
            cout << ran << endl;
        }
    }

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (a).1
Q166.
Which operator is used to produce a certain number in a specific range?
Discuss
Answer: (d).both % and modulo operator
Q167.
Which can be used to create a random number without duplication?
Discuss
Answer: (b).Time
Q168.
Ios: : skipws, ios: : left, ios: : dec, ios: : fixed, is an example of
Discuss
Answer: (c).ios format flags
Q169.
If we don't want any ios object can be declared in ios class, we can use a default constructor
Discuss
Answer: (b).Private
Discuss
Answer: (c).C++ does not have any input/output facility

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