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C++ Introduction
course content

Course Content

C++ Introduction

C++ Introduction

1. Getting Started
What is C++Entry Point of a ProgramStandard Library and FilesPreprocessor DirectivesThe First Program
2. Introduction to Operators
Operators IntroductionArithmetic Operators PracticeRelational OperatorsLogical Operators
3. Variables and Data Types
Data TypesUnderstanding VariablesNumerical Data TypesIntroduction to StringIntroduction to ArraysWorking with the Array
4. Introduction to Program Flow
Conditional StatementsTernary OperatorSwitch StatementWhile LoopFor LoopPracticing With Loops
5. Introduction to Functions
What are Functions?Type of FunctionsReturn Statement in Functions Simple Function Practice

bookIntroduction 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.

cpp

main

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#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.

cpp

main

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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.

cpp

main

copy

              
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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Section 3. Chapter 4
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