Introduction to Strings

In C++, a string is a sequence of characters that is used to represent textual data. Strings are commonly used for storing and manipulating text in programs.

In C++, strings are defined using the std::string class from the Standard Template Library (STL). To work with strings, you need to include the <string> header.

Here's an example of declaring and printing a string in C++:

1#include <iostream>
2
3int main() {
4  std::string greeting = "Hello, world!";
5  std::cout << greeting << std::endl;
6  return 0;
7}

In this example, we declare a string variable greeting and assign it the value "Hello, world!". We then use std::cout to print the string to the console, followed by a newline character (std::endl) to start a new line.

When you run this program, you will see the output:

1Hello, world!

This is a basic introduction to strings in C++. In the following lessons, we will explore more advanced concepts and operations related to strings.

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#include <iostream>

​

int main() {

  std::string greeting = "Hello, world!";

  std::cout << greeting << std::endl;

  return 0;

}