What is the function of a constructor in object-oriented programming?

A constructor in object-oriented programming serves the specific purpose of initializing a newly created object. When a class is instantiated, the constructor method is automatically invoked to set up the initial state of the object. This often includes assigning values to attributes, allocating resources, and performing any setup operations necessary to ensure the object is ready for use.

Using a constructor allows for encapsulation and abstraction, fundamental principles of object-oriented design. It ensures that an object's properties are defined and set correctly before the object is used, thereby maintaining the integrity and validity of that object throughout its lifecycle.

For instance, in many programming languages, the constructor may take parameters that provide the necessary information to configure the object appropriately. This allows for flexibility and adaptability in how objects are created, making it easier to manage the complexity of software systems.