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C++ OOP
course content

Conteúdo do Curso

C++ OOP

C++ OOP

1. Fundamentals of OOP in C++
Introduction to Object-Oriented Programming in C++Why use Object-Oriented Programming?Class Creation SyntaxAttributes of the ClassMethods of the ClassStatic Members of The ClassThe This KeywordClasses and Objects Overview
2. Constructors and Destructors
What is a Constructor of the ClassConstructor and AttributesConstructor Initialization ListInitialization List PracticeConstructor DelegationConstructor Delegation PracticeWhat is a Destructor of the ClassConstructors and Destructors Practice
3. Encapsulation Overview
Introduction to EncapsulationAccess Modifiers KeywordsAccess Modifiers PracticeAccessor and Mutator MethodsSegmentation and AggregationThe Friend Keyword
4. Inheritance Overview
Introduction to InheritanceAccess Modifiers in InheritanceMulptiple InheritanceConstructor and Destructor in InheritanceDiamond InheritanceThe Final Keyword
5. Polymorphism Overview
Introduction to PolymorphismVirtual and Override KeywordsPure Virtual MethodOperator OverloadingSummary and Overview

book
Why use Object-Oriented Programming?

Imagine you were given a task to develop a software application to manage student data. It might seem straightforward at first. You might begin by using simple variables to store a student’s name and GPA.

cpp

main

copy

              
12345

            
int main()
{
    std::string student_name = "Bob";
    float grade_point_average = 3.3;
}

This approach works fine for managing a single student, but things get more complex with multiple students. A naive solution might use separate variables for each one, but this quickly becomes unmanageable. Using arrays is a better option to reduce repetition and improve organization.

cpp

main

copy

              
12345

            
int main()
{
    std::string names[2] { "Bob", "Ann" };
    float avarage_grades[2] { 3.3, 3.7 };
}

This works for now. But what if you need to store more details, such as phone numbers, enrollment dates, or course lists? As the data grows, managing multiple separate arrays becomes cumbersome and error-prone.

cpp

main

copy

              
123456

            
int main()
{
    std::string names[2] { "Bob", "Ann" };
    float average_grades[2] { 3.3f, 3.7f };
    std::string emails[2] { "bob@example.com", "ann@example.com" };
}

To manage this data, you might create functions that take these values as arguments to perform actions like printing student info, updating the GPA, or changing the email address. But with multiple students and fields, you end up repeating the same arguments across many functions, making the code error-prone and hard to maintain.

h

functions

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123456

            
void get_student_info(int id, std::string names[], float gpa[], std::string emails[]);
void set_student_info(int id, std::string names[], float gpa[], std::string emails[]);

void set_student_name(int id, std::string names[], float gpa[], std::string emails[]);
void set_student_gpa(int id, std::string names[], float gpa[], std::string emails[]);
void set_student_email(int id, std::string names[], float gpa[], std::string emails[]);

Even simple tasks require passing the same set of arrays repeatedly. As you add more fields, the code becomes increasingly complex and repetitive.

Object-Oriented Programming (OOP) solves this by allowing you to group related data and behavior into a single container called a class. This not only simplifies your code, but also improves encapsulation by controlling access to internal details through clear, well-defined interfaces.

question mark

Which of the following is the main advantage of using object-oriented programming?

Select the correct answer

Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 1. Capítulo 2

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course content

Conteúdo do Curso

C++ OOP

C++ OOP

1. Fundamentals of OOP in C++
Introduction to Object-Oriented Programming in C++Why use Object-Oriented Programming?Class Creation SyntaxAttributes of the ClassMethods of the ClassStatic Members of The ClassThe This KeywordClasses and Objects Overview
2. Constructors and Destructors
What is a Constructor of the ClassConstructor and AttributesConstructor Initialization ListInitialization List PracticeConstructor DelegationConstructor Delegation PracticeWhat is a Destructor of the ClassConstructors and Destructors Practice
3. Encapsulation Overview
Introduction to EncapsulationAccess Modifiers KeywordsAccess Modifiers PracticeAccessor and Mutator MethodsSegmentation and AggregationThe Friend Keyword
4. Inheritance Overview
Introduction to InheritanceAccess Modifiers in InheritanceMulptiple InheritanceConstructor and Destructor in InheritanceDiamond InheritanceThe Final Keyword
5. Polymorphism Overview
Introduction to PolymorphismVirtual and Override KeywordsPure Virtual MethodOperator OverloadingSummary and Overview

book
Why use Object-Oriented Programming?

Imagine you were given a task to develop a software application to manage student data. It might seem straightforward at first. You might begin by using simple variables to store a student’s name and GPA.

cpp

main

copy

              
12345

            
int main()
{
    std::string student_name = "Bob";
    float grade_point_average = 3.3;
}

This approach works fine for managing a single student, but things get more complex with multiple students. A naive solution might use separate variables for each one, but this quickly becomes unmanageable. Using arrays is a better option to reduce repetition and improve organization.

cpp

main

copy

              
12345

            
int main()
{
    std::string names[2] { "Bob", "Ann" };
    float avarage_grades[2] { 3.3, 3.7 };
}

This works for now. But what if you need to store more details, such as phone numbers, enrollment dates, or course lists? As the data grows, managing multiple separate arrays becomes cumbersome and error-prone.

cpp

main

copy

              
123456

            
int main()
{
    std::string names[2] { "Bob", "Ann" };
    float average_grades[2] { 3.3f, 3.7f };
    std::string emails[2] { "bob@example.com", "ann@example.com" };
}

To manage this data, you might create functions that take these values as arguments to perform actions like printing student info, updating the GPA, or changing the email address. But with multiple students and fields, you end up repeating the same arguments across many functions, making the code error-prone and hard to maintain.

h

functions

copy

              
123456

            
void get_student_info(int id, std::string names[], float gpa[], std::string emails[]);
void set_student_info(int id, std::string names[], float gpa[], std::string emails[]);

void set_student_name(int id, std::string names[], float gpa[], std::string emails[]);
void set_student_gpa(int id, std::string names[], float gpa[], std::string emails[]);
void set_student_email(int id, std::string names[], float gpa[], std::string emails[]);

Even simple tasks require passing the same set of arrays repeatedly. As you add more fields, the code becomes increasingly complex and repetitive.

Object-Oriented Programming (OOP) solves this by allowing you to group related data and behavior into a single container called a class. This not only simplifies your code, but also improves encapsulation by controlling access to internal details through clear, well-defined interfaces.

question mark

Which of the following is the main advantage of using object-oriented programming?

Select the correct answer

Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 1. Capítulo 2
Sentimos muito que algo saiu errado. O que aconteceu?
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