How to Create String in C++: Syntax and Examples

In C++, you create a string using the std::string class by including the <string> header and declaring a variable like std::string name = "Hello";. This lets you store and manipulate text easily.

Syntax

To create a string in C++, you use the std::string class from the <string> header. You declare a string variable and assign text to it using double quotes.

• std::string: The string type from the C++ Standard Library.
• variable name: Your chosen name for the string.
• = "text";: Assigns the text to the string variable.

cpp

#include <string>

std::string variable_name = "text";

Example

This example shows how to create a string, assign text, and print it to the console using std::cout.

cpp

#include <iostream>
#include <string>

int main() {
    std::string greeting = "Hello, world!";
    std::cout << greeting << std::endl;
    return 0;
}

Output

Hello, world!

Common Pitfalls

Common mistakes when creating strings in C++ include:

• Forgetting to include the <string> header, which causes errors.
• Using single quotes ' ' instead of double quotes " " for string literals.
• Trying to assign a C-style string (char array) directly without using std::string.

Always use std::string for easy and safe string handling.

cpp

#include <iostream>
// Wrong: missing <string> header
// std::string name = 'Hello'; // Wrong: single quotes for string

#include <string>

int main() {
    std::string name = "Hello"; // Correct
    std::cout << name << std::endl;
    return 0;
}

Output

Hello

Quick Reference

Summary tips for creating strings in C++:

• Always #include <string> before using std::string.
• Use double quotes "text" for string literals.
• Declare strings as std::string variable = "text";.
• Use std::cout to print strings.

Key Takeaways

Use std::string from the <string> header to create strings in C++.

Always enclose text in double quotes when assigning to a string variable.

Include <string> to avoid compilation errors.

Use std::cout to display strings on the console.

Avoid using single quotes for strings; they are for single characters.