Article directory 1. Virtual destructor 1. The constructor cannot be a virtual function 2. The destructor can be a virtual function 3. Virtual destructor syntax 4. The meaning of virtual destructor 2. Code example – virtual destructor 1. Code example – Failure to use a virtual destructor results in the subclass destructor being unable to […]
Tag: polymorphism
C++ polymorphism (vtable & vtable pointer)
Article directory The concept of polymorphism The concept of polymorphism The definition and implementation of polymorphism The conditions for polymorphism virtual function Overriding of virtual functions Comparison of overloading, overwriting (rewriting), hiding (redefining) abstract class The principle of polymorphism virtual function table Virtual function table for single inheritance and multiple inheritance relationships Virtual tables in […]
[C++] Polymorphism ① (Type compatibility principle and function rewriting | “Polymorphism” introduction | Function rewriting)
Article directory 1. Type compatibility principle and function rewriting 1. Introduction of “Polymorphism” 2. Function rewriting 3. Several situations of type compatibility principle 4. Examples of parent class and subclass 5. The parent class pointer points to the parent class object/subclass object 6. Parent class reference points to parent class object/subclass object 2. Complete code […]
Ten Thousand Words Analysis C++ – Polymorphism
The concept of polymorphism The concept of polymorphism: In layman’s terms, it means multiple forms. The specific point is to complete a certain behavior. When different objects complete it, different states will be produced. For example, for the same behavior of buying tickets, ordinary people buy tickets at full price, students buy tickets at half […]
8.5 C++ Inheritance and Polymorphism
The C/C++ language is a general-purpose programming language that is efficient, flexible, and portable. C language is mainly used for system programming, such as operating systems, compilers, databases, etc.; C language is an extension of C language, adding object-oriented programming features, and is suitable for large software systems, graphical user interfaces, embedded systems, etc. The […]
[C++] End of Polymorphism
Welcome to Cefler’s blog Blog homepage: the homepage of the legendary man Personal column: topic analysis Recommended article: Analysis of the topic (3) Directory Where is the virtual table stored in memory? Will the address of the virtual function be put into the virtual function table of the class? Some questions and answers about polymorphism […]
Polymorphism in C++
Article directory polymorphic definition Static polymorphism (static binding or early binding) Dynamic polymorphism (virtual function) abstract class Polymorphic definition Basic definition: In C++, polymorphism is a feature of object-oriented programming (OOP) that allows different classes (usually base classes and derived classes) to interact using the same interface, but exhibit different behaviors. Static polymorphism (static binding […]
C++: The content and underlying principles of polymorphism
Article directory The concept of polymorphism Definition of polymorphism virtual function “`override“` and “`final“` keywords Overload, overwrite, hide abstract class Definition of abstract class Interface inheritance and implementation inheritance Analysis of the principles of polymorphism virtual function table This article summarizes the basic content and principle implementation of polymorphism in C++ and some side content […]
Encapsulation, inheritance, polymorphism
1. Encapsulation package oop.Demo04; //Encapsulation: private properties, get/set /* The meaning of encapsulation: 1. Improve program security and protect data 2.Hide the implementation details of the code 3. Unified interface 4. The maintainability of the system is increased */ public class Student {<!– –> private String name; private int age; private int id; private char […]
C++ polymorphism, virtual function, pure virtual function, abstract class
The concept of polymorphism Generally speaking, it is a variety of forms. The specific point is to complete a certain behavior. When different objects complete it, different states will be produced. To give a simple example: grabbing a red envelope, each of us only needs to click on the red envelope to grab the amount. […]