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

Understanding Variables

Variables play an important role in storing and manipulating data. The process of creating a variable involves two essential steps: declaration and initialization.

main

example


              12345678910
            
#include <iostream>

int main()
{
    // Declaration is process of introducing a variable and giving it a name
  	int x;

    // Initialization is the assigning a value to a declared variable.  
    x = 25; 
}

Also when declaring multiple variables that hold the same type of data, it is convenient to specify the data type only once.

Naming Conventions

Choosing meaningful and descriptive names for variables is crucial for writing maintainable and understandable code.

naming


              1
            
int n; // Bad naming

naming


              1
            
int numberOfStudents; // Good naming

Variable names in C++ can consist of letters and numbers but cannot start with numbers, nor can they contain spaces or arithmetic operators. Also avoid using names that coincide with reserved keywords. This can lead to compilation errors.

main


              123456789
            
#include <iostream>

int main()
{
    int int = 25;                 // Uses reserved keyword
    int email!number = 25;        // Contains a special character
    int my age = 37;              // Contains space
    int 121A = 121;               // Starts with digit
}

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 2

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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

Understanding Variables

Variables play an important role in storing and manipulating data. The process of creating a variable involves two essential steps: declaration and initialization.

main

example


              12345678910
            
#include <iostream>

int main()
{
    // Declaration is process of introducing a variable and giving it a name
  	int x;

    // Initialization is the assigning a value to a declared variable.  
    x = 25; 
}

Also when declaring multiple variables that hold the same type of data, it is convenient to specify the data type only once.

Naming Conventions

Choosing meaningful and descriptive names for variables is crucial for writing maintainable and understandable code.

naming


              1
            
int n; // Bad naming

naming


              1
            
int numberOfStudents; // Good naming

main


              123456789
            
#include <iostream>

int main()
{
    int int = 25;                 // Uses reserved keyword
    int email!number = 25;        // Contains a special character
    int my age = 37;              // Contains space
    int 121A = 121;               // Starts with digit
}

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 2