Initialize objects with constructors and clean up with destructors.
A constructor is a special member function of a class that is executed automatically whenever a new object of that class is created. Its primary purpose is to initialize the object's member variables to appropriate starting values. A constructor has the same name as the class and does not have a return type, not even `void`. If you don't define a constructor, the compiler provides a default one for you. You can define your own constructors to take arguments, which allows you to create and initialize an object in a single step. For example, `Car myCar("Ford", "Mustang", 2023);`. This is known as a parameterized constructor. A class can also have multiple overloaded constructors. A destructor is another special member function that is called automatically when an object goes out of scope or is explicitly deleted. Its purpose is to perform cleanup tasks before the object is destroyed, such as releasing memory that was allocated by the object. A destructor has the same name as the class, but preceded by a tilde (`~`), and it cannot take any arguments or have a return type. For simple classes, a destructor may not be necessary, but for classes that manage resources like dynamic memory, files, or network connections, it is essential for preventing resource leaks.