Quiz on C++ Strings

Last Updated :

Discuss

Comments

Question 1

What is a C++ string?

A
A data type used to store integers.
B
A data type used to store floats.
C
A sequence of characters.
D
A pointer to an integer.

Question 2

Which of the following header file is required to use C++ strings?

A
#include <iostream>
B
#include <string>
C
#include <vector>
D
#include <cstdlib>

Question 3

Which of the following is a correct way to initialize a string in C++?

A
string str = "Hello";
B
string str("Hello");
C
string str{"Hello"};
D
All of the above

Question 4

What will be the output of the following code?

C++

#include <iostream>
#include <string>
using namespace std;

int main() {
    string str = "Hello, Geek!";
    cout << str.length();
    return 0;
}

A
12
B
13
C
14
D
15

Question 5

Which method is used to concatenate two strings in C++?

A
concat()
B
attach()
C
connect()
D
append()

Question 6

What will be the output of the following code?

C++

#include <iostream>
#include <string>
using namespace std;

int main() {
    string str1 = "Hello";
    string str2 = "World";
    string str3 = str1 + " " + str2;
    cout << str3;
    return 0;
}

A
HelloWorld
B
Hello World
C
Hello
D
Hello " " World

Question 7

Which function is used to find the length of a string in C++?

A
size()
B
length()
C
Only a
D
both a and b

Question 8

What will be the output of the following code?

C++

#include <iostream>
#include <string>
using namespace std;

int main() {
    string str = "geeksforgeek";
    str.push_back('s');
    cout << str;
    return 0;
}

A
sgeeksforgeek
B
geeksforgeek
C
geekforgeeks
D
geeksforgeeks

Question 9

Which of the following method(s) is used to clear the contents of a string in C++?

A
clear()
B
erase()
C
remove()
D
delete()

Question 10

What will be the output of the following code?

C++

#include <iostream>
#include <string>
using namespace std;

int main() {
    string str = "Hello";
    str.pop_back();
    cout << str;
    return 0;
}

A
Hello
B
Hell
C
ello
D
Helo

Tags:

C++

C++ Quiz

There are 33 questions to complete.

Take a part in the ongoing discussion