adplus-dvertising

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++.

frame-decoration

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 12 of 21

Explore more Topics under Object Oriented Programming Using C++

Q111.
Which will be used with physical devices to interact from C++ program?
Discuss
Answer: (c).Streams
Q112.
How many streams are automatically created when executing a program?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (c).3
Q113.
What is the output of this program by manipulating the text file?
    #include <stdio.h>
    int main () 
    {
        if (remove( "myfile.txt" ) != 0 )
            perror( "Error" );
        else
            puts( "Success" );
        return 0;
    }
Discuss
Answer: (d).Can’t say
Q114.
What is the output of this program?
    #include <stdio.h>
    int main ()
    {
        FILE * p;
        int c;
        int n = 0;
        p = fopen ("myfile.txt", "r");
        if (p == NULL) 
            perror ("Error opening file");
        else
        {
            do {
                c = getc (p);
                if (c == '$') 
                    n++;
            } while (c != EOF);
            fclose (p);
            printf ("%d\n", n);
        }
        return 0;
    }
Discuss
Answer: (c).Any of the mentioned
Q115.
What is the output of this program in the text file?
    #include <stdio.h>
    int main ()
    {
        FILE * pFile;
        char c;
        pFile = fopen("sample.txt", "wt");
        for (c = 'A'; c <= 'E'; c++) 
        {    
            putc (c, pFile);
        }
        fclose (pFile);
        return 0;
    }
Discuss
Answer: (c).ABCDE
Q116.
What is the name of the myfile2 file after executing this program?
    #include <stdio.h>
    int main ()
    {
        int result;
        char oldname[] = "myfile2.txt";
        char newname[] = "newname.txt";
        result = rename(oldname, newname );
        if (result == 0)
            puts ( "success" );
        else
            perror( "Error" );
        return 0;
    }
Discuss
Answer: (c).newname
Q117.
How many number of characters are available in newname.txt?
    #include <stdio.h>
    int main ()
    {
        FILE * p;
        int n = 0;
        p = fopen ("newname.txt", "rb");
        if (p == NULL) 
            perror ("Error opening file");
        else
        {
            while (fgetc(p) != EOF)
            {
                ++n;
            }
            if (feof(p)) 
            {
                printf ("%d\n", n);
            }
            else
                puts ("End-of-File was not reached.");
            fclose (p);
        }
        return 0;
    }
Discuss
Answer: (c).Depends on the text file
Q118.
How many indicators are available in c++?

a.

4

b.

3

c.

2

d.

1

Discuss
Answer: (b).3
Q119.
What is the benefit of c++ input and output over c input and output?
Discuss
Answer: (a).Type safety
Q120.
To which type does the numeric limits are suitable?
Discuss
Answer: (c).Arithmetic types

Suggested Topics

Are you eager to expand your knowledge beyond Object Oriented Programming Using C++? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!