What is the purpose of a constructor in a class?

The purpose of a constructor in a class is to initialize the object's attributes when it is created. When you create an instance of a class, the constructor is automatically invoked, allowing you to set initial values for the object's properties or perform any setup that is necessary before the object is used. This ensures that the object starts in a valid state, with defined attributes, making it ready for operations as soon as it is instantiated.

For example, if you have a class representing a car, the constructor can initialize attributes such as the car's make, model, and year. When you create a new car object, the constructor passes the necessary values to these attributes.

The constructor concept is crucial in object-oriented programming, as it promotes encapsulation and proper management of an object's state right from the moment it comes into existence. Other choices focus on different aspects of class functionality that are not the primary role of a constructor.