Quiz on C++ Strings

Welcome to the C++ Strings Quiz! This extensive quiz covers a wide range of topics from basic to advance related to strings in C++. Each question comes with a clear explanation, helping you understand not just the correct answer but why it's correct. Test your knowledge and strengthen your understanding of how strings work, from basic declarations to advanced manipulations.

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Question 1

What is a C++ string?

  • A data type used to store integers.

  • A data type used to store characters.

  • A sequence of characters.

  • A pointer to an integer.

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Question 2

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

  • #include <iostream>

  • #include <string>

  • #include <vector>

  • #include <cstdlib>

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Question 3

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

  • string str = "Hello";

  • string str("Hello");

  • string str{"Hello"};

  • All of the above

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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;
}

  • 12

  • 13

  • 14

  • 15

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Question 5

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

  • concat()

  • attach()

  • connect()

  • append()

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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;
}

  • HelloWorld

  • Hello World

  • Hello

  • Hello " " World

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Question 7

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

  • size()

  • length()

  • Only a

  • both a and b

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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;
}

  • sgeeksforgeek

  • geeksforgeek

  • geekforgeeks

  • geeksforgeeks

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Question 9

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

  • clear()

  • erase()

  • remove()

  • delete()

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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;
}

  • Hello

  • Hell

  • ello

  • Helo

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There are 35 questions to complete.

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