The document provides an introduction to the string data type in C++, explaining its purpose for storing text and how to declare and manipulate strings. It includes examples of string declaration, combining strings, user input, and determining string length using the length() function. It also emphasizes the need to include the <string> header file when working with strings in C++.

1. STRINGS IN C++
CREATED BY:
________________
Instructor:
_________________
_

2. WELCOM
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3. WHAT IS STRING
• Like int, double, char, and bool, “String” is a datatype.
• Strings are used for storing text (names, sentences, phrases, etc).
• For example:
string name = “Pakistan”;

4. HOW STRING IS USED
A string contains a collection of characters, surrounded by double quotes
Example:
string greeting = "Hello";

5. USING STRING
• To use string, you must include <string> header file in the code
• Example
// Include the string library
#include <string>
// Create a string variable
string greeting = "Hello";

6. SOME STRING EXAMPLES
• String firstName = “John”;
• String lastName = “Doe”;
// Combining two strings in c++:
• String fullName = firstName + lastName;

7. GET STRING FROM USER
#include <iostream>
#include <string>
using namespace std;
int main() {
string fullName;
cout << "Type your full name: ";
getline (cin, fullName);
cout << "Your name is: " << fullName;
return 0;
}

8. C++ STRING LENGTH
To check how many characters are stored in a string, we use length() function of string.
Example:
string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
cout << "The length of the txt string is: " << alphabet.length();
//OUTPUT of code:
//The length of the txt string is: 26

9. THANK YOU
Created by: ___________
Instructor: _________________