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

Data Types

When declaring a variable, you need to specify what type of data we will store in it. There are data types for easy memory handling for every situation.

Integer Types	Floating Point Types	Character Types	Other Types
`int`	`float`	`char`	`bool`
`short`	`double`	`string`	`void`

Numerical

These types are essential for storing numerical values and performing mathematical operations. They are divided into two main groups: integer types, which store whole numbers, and floating-point types, which store numbers with fractional parts.

integers

decimals


              12
            
// examples of literal integers
5 100 30

Bool

The bool data type represents two boolean values: zero interpreted as false and one is interpreted as true.

on = true = 1		off = false = 0

Char

The char data type is used to store individual characters, which can include letters, digits, punctuation marks, and special characters. These characters must be enclosed in single quotes ('), such as 'A', '9', or '!'.

Void

The void data type represents the absence of a value. It is primarily used for functions that do not return any data. When a function is declared as void, it means the function performs an action but does not provide a result.

Note

The use and purpose of void will be explored further in the chapter about functions.

You can check the data type of certain expressions using the code below. Feel free to experiment with it.

main


              123456789
            
#include <iostream>
#include <typeinfo> // Provides tools for type identification

int main()
{
    // `typeid().name()` gives you the type of expression
    // Replace `___` with a number, boolean (true/false), or character
    std::cout << "The data type is " << typeid(___).name() << std::endl;
}

1. What does the int data type store?

2. What is the correct syntax for a `char` type?

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 1

Ask AI

Ask anything or try one of the suggested questions to begin our chat

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

Data Types

When declaring a variable, you need to specify what type of data we will store in it. There are data types for easy memory handling for every situation.

Integer Types	Floating Point Types	Character Types	Other Types
`int`	`float`	`char`	`bool`
`short`	`double`	`string`	`void`

Numerical

integers

decimals


              12
            
// examples of literal integers
5 100 30

Bool

The bool data type represents two boolean values: zero interpreted as false and one is interpreted as true.

on = true = 1		off = false = 0

Char

Void

Note

The use and purpose of void will be explored further in the chapter about functions.

You can check the data type of certain expressions using the code below. Feel free to experiment with it.

main


              123456789
            
#include <iostream>
#include <typeinfo> // Provides tools for type identification

int main()
{
    // `typeid().name()` gives you the type of expression
    // Replace `___` with a number, boolean (true/false), or character
    std::cout << "The data type is " << typeid(___).name() << std::endl;
}

1. What does the int data type store?

2. What is the correct syntax for a `char` type?

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 1

C++ Introduction

Data Types

Numerical

Bool

Char

Void

1. What does the int data type store?

2. What is the correct syntax for a char type?

C++ Introduction

Data Types

Numerical

Bool

Char

Void

1. What does the int data type store?

2. What is the correct syntax for a char type?

2. What is the correct syntax for a `char` type?

2. What is the correct syntax for a `char` type?