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Welcome to the Class Hierarchies,Library and Containers MCQs Page

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

Class Hierarchies,Library and Containers MCQs | Page 14 of 15

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Q131.
What is the output of this program?
    #include <iostream>
    #include <map>
    using namespace std;
    int main ()
    {
        multimap<char, int> mymultimap;
        mymultimap.insert(make_pair('y', 202));
        mymultimap.insert(make_pair('y', 252));
        pair<char, int> highest = *mymultimap.rbegin();
        multimap<char, int> :: iterator it = mymultimap.begin();
        do 
        {
            cout << (*it).first << " => " << (*it).second << '\n';
        } while ( mymultimap.value_comp()(*it++, highest) );
        return 0;
    }
Discuss
Answer: (a).y => 202
Q132.
What do all STL containers define?
Discuss
Answer: (d).All of the mentioned
Q133.
What do we return if we use simple array on a internal container?
Discuss
Answer: (b).Pointers
Q134.
What is mandatory for designing a new container?
Discuss
Answer: (b).Iterators
Q135.
What are the design requirements for building a container from the sratch?
Discuss
Answer: (d).All of the mentioned
Q136.
How many iterators are needed for the defining a new container?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (c).3
Q137.
What is the use of the allocater interface in the user-defined container?
Discuss
Answer: (a).Storage management
Q138.
How many types of container classes are there in c++?
Discuss
Answer: (b).2
Q139.
What is the name of the container which contains group of multiple objects?
Discuss
Answer: (a).Heterogeneous container
Q140.
What is the output of this program?
    #include <iostream>
    #include <string>
    #include <algorithm>
    using namespace std;
    int main() 
    {
        string s = "spaces in text";
        s.erase(remove(s.begin(), s.end(), ' ' ), s.end() ) ;
        cout << s << endl;
    }
Discuss
Answer: (d).spacesintext

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