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Welcome to the Derived Classes,Templates and Exception Handling in C++ MCQs Page

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

Derived Classes,Templates and Exception Handling in C++ MCQs | Page 17 of 24

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Q161.
What is the output of this program?
    #include <iostream>
    using namespace std;
    void test(int x)
    {
        try
        {
            if (x > 0)
                throw x;
            else
                throw 'x';
        }
        catch(char)
        {
            cout << "Catch a integer and that integer is:" << x;
        }
    }
    int main()
    {
        cout << "Testing multiple catches\n:";
        test(10);
        test(0);
    }
Discuss
Answer: (c).Runtime error
Q162.
What is the output of this program?
    #include <stdexcept>
    #include <limits>
    #include <iostream>
    using namespace std;
    void func(int c)
    {
        if (c < numeric_limits<char> :: max())
            throw invalid_argument("MyFunc argument too large.");
        else
        {
            cout<<"Executed";
        }
    }
    int main()
    {
        try
        {
            func(256);
        }
        catch(invalid_argument& e)
        {
            cerr << e.what() << endl;
            return -1;
        }
        return 0;
    }
Discuss
Answer: (b).Executed
Q163.
What is the output of this program?
    #include <iostream>
    #include <string>
    using namespace std;
    int main ()
    {
        int num = 3;
        string str_bad = "wrong number used";
        try
        {
            if ( num == 1 )
            {       
                throw 5;
            }
            if ( num == 2 )
            {
                throw 1.1f;
            }
            if ( num != 1 || num != 2 )
            {    
                throw str_bad;
            }
        }
        catch (int a)
        {
            cout << "Exception is: " << a << endl;
        }
        catch (float b)
        {
            cout << "Exception is: " << b << endl;
        }
        catch (...)
        {
            cout  << str_bad << endl;
        }
        return 0;
    }
Discuss
Answer: (c).Wrong number used
Q164.
What is the output of this program?
    #include <iostream>
    using namespace std;
    double division(int a, int b)
    {
        if (b == 0)
        {
            throw "Division by zero condition!";
        }
        return (a / b);
    }
    int main ()
    {
        int x = 50;
        int y = 0;
        double z = 0;
        try 
        {
            z = division(x, y);
            cout << z << endl;
        }
        catch (const msg) 
        {
            cerr << msg << endl;
        }
        return 0;
    }
Discuss
Answer: (d).Error
Discuss
Answer: (c).Establish the class invariant
Discuss
Answer: (a).Exception object is created only if an error actually happens
Q167.
Which alternative can replace the throw statement?
Discuss
Answer: (c).return
Discuss
Answer: (d).All of the mentioned
Q169.
What is most suitable for returning the logical errors in the program?
Discuss
Answer: (b).Set a global error indicator
Q170.
What is the output of this program?
    #include <iostream>
    #include <typeinfo>
    using namespace std;
    class A 
    { 
    };
    int main()
    { 
        char c; float x;
        if (typeid(c) != typeid(x))
        cout << typeid(c).name() << endl;
        cout << typeid(A).name();
        return 0;
    }
Discuss
Answer: (a).c 1A

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