Introduction to String

You can store text in variables using the string type. To do this, you'll need to include the string library, utilize the std namespace scope resolution, and declare a variable of the string type. This allows you to handle sequences of characters seamlessly in your programs.

main


              1234567891011
            
#include <iostream>
#include <string>

int main()
{
	// Declaring string variable
	std::string text = "codefinity";

	// Displaying string variable
	std::cout << text << std::endl;
}

Strings variables can also contain numbers (as text). However, it's important to note that while you can store numbers in this format, you cannot directly perform mathematical operations on these numbers while they're stored as strings.

main


              12345678910
            
#include <iostream>
#include <string>

int main()
{
	std::string text = "1024";

	// Displaying string variable
	std::cout << text << std::endl;;
}

If you try to add two string variables, you get a concatenation (it works without spaces). The same thing will happen with numbers – they will not be added algebraically.

main


              1234567891011
            
#include <iostream>
#include <string>

int main()
{
	std::string first_part = "Hello "; //space is also a symbol
	std::string second_part = "World";

	//displaying the sum of string variables
	std::cout << first_part + second_part << std::endl;
}

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Thanks for your feedback!

Section 3. Chapter 4

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Course Content

C++ Introduction

1. Getting Started

Introduction to C++ Programming Entry Point of a C++ Program Understanding the Standard Library and Files in C++Exploring C++ Preprocessor Directives Writing Your First C++ Program

2. Introduction to Operators

Mastering C++ Operators Arithmetic Operators Practice Relational Operators Logical Operators

3. Variables and Data Types

Data Types Understanding Variables Numerical Data Types Introduction to String Introduction to Arrays Working with the Array

4. Introduction to Program Flow

Conditional Statements Ternary Operator Switch Statement While Loop For Loop Practicing With Loops

5. Introduction to Functions

What are Functions?Type of Functions Return Statement in Functions Simple Function Practice

Introduction to String

main


              1234567891011
            
#include <iostream>
#include <string>

int main()
{
	// Declaring string variable
	std::string text = "codefinity";

	// Displaying string variable
	std::cout << text << std::endl;
}

main


              12345678910
            
#include <iostream>
#include <string>

int main()
{
	std::string text = "1024";

	// Displaying string variable
	std::cout << text << std::endl;;
}

If you try to add two string variables, you get a concatenation (it works without spaces). The same thing will happen with numbers – they will not be added algebraically.

main


              1234567891011
            
#include <iostream>
#include <string>

int main()
{
	std::string first_part = "Hello "; //space is also a symbol
	std::string second_part = "World";

	//displaying the sum of string variables
	std::cout << first_part + second_part << std::endl;
}

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 4