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++.
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
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#include <stdio.h>
int main ()
{
if (remove( "myfile.txt" ) != 0 )
perror( "Error" );
else
puts( "Success" );
return 0;
} #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;
} #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;
} #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;
} #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;
}Suggested Topics
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