How is Constructor different from Destructor? List down any three differences

Constructor and Destructor are two important concepts in object-oriented programming. Here are three differences between them:

1. Purpose:

• Constructor: A constructor is a special member function that is used to initialize an object of a class. It is called automatically when an object is created.
• Destructor: A destructor is also a special member function, but its purpose is to destroy an object and free up any resources that the object may have acquired during its lifetime. It is called automatically when an object goes out of scope or is explicitly deleted.

2. Syntax:

• Constructor: The syntax for a constructor is the same as the class name, and it does not have a return type. It can have parameters to initialize the object's data members.
• Destructor: The syntax for a destructor is the same as the class name, preceded by a tilde (~). It does not have any parameters or return type.

3. Usage:

• Constructor: Constructors are used to initialize the object's data members and set them to a valid state. They are typically used to allocate memory, initialize variables, and perform any necessary setup for the object.
• Destructor: Destructors are used to clean up resources that the object may have acquired during its lifetime. This can include releasing memory, closing files, or releasing any other system resources.

In summary, constructors are used to initialize objects, while destructors are used to clean up resources and destroy objects. Constructors are called automatically when an object is created, while destructors are called automatically when an object goes out of scope or is explicitly deleted.