Strings
- What is the output of this program?
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string str ("Prayagraj Shakya");
cout << str.capacity() << "\n";
return 0;
}
-
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NA
Correct Option: B
In this program, We are finding the capacity that the str can hold.
- What is the output of this program?
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string s ("Bjarne Stroustrup founded the C++");
string s2 ("C++");
unsigned found = s.find(s2);
if (found != string :: npos)
cout << found << '\n';
return 0;
}
-
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NA
Correct Option: D
In this program, We are finding a string by using the find method.
- What is the output of this program?
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string s ("Ajit Kumar");
unsigned found = s.find_first_of("Gupta");
while (found != string :: npos)
{
s[found] = '*';
found = s.find_first_of("Gupta", found + 1);
}
cout << s << '\n';
return 0;
}
-
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NA
Correct Option: E
In this program, We are replacing the vowels with a asterisk by using find_first_of method.
- What is the output of this program?
#include <iostream>
#include <cstring>
#include <string>
using namespace std;
int main ()
{
string s ("Manjesh Ojha");
char * cstr = new char [s.length() + 1];
strcpy (cstr, s.c_str());
char * p = strtok (cstr," ");
while (p != 0)
{
cout << p << '\n';
p = strtok(NULL," ");
}
delete[] cstr;
return 0;
}
-
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NA
Correct Option: C
In this program, We are breaking up the strings into the form of tokens.
- What is the difference between unsigned int length() and unsigned int size()?
-
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NA
Correct Option: A
Both of them will return the length of strings in same notations.
