C++: Constructor and Destructor Programming

Constructor and destructor are two special member functions in C++, used for object initialization and destruction. Constructors are called when an object is created, while destructors are called when an object is destroyed. In this article, we will take an in-depth look at the concepts of constructors and destructors and provide corresponding example code.

The purpose of the constructor is to initialize the object when it is created. It has the same name as the class, has no return type, and can have parameters. Constructors can perform various initialization tasks, such as allocating memory, initializing member variables, etc. If no constructor is defined for a class, the compiler will provide a default no-argument constructor.

Here is an example showing the usage of a simple class and its constructor:

#include <iostream>

class Circle {
   
    
    
private:
    double radius;

public:
    Circle