Object-oriented programming (OOP) is a popular approach in software development that focuses on creating objects that contain both data and functions to manipulate that data. One of the key benefits of OOP is code reusability, as objects can be reused in different parts of a program or even in different programs altogether. This can save time and effort in the development process, as developers can leverage existing objects rather than creating new ones from scratch. Another advantage of OOP is data encapsulation, which allows for the hiding of the internal state of an object and only exposing the necessary information to the outside world. This helps to ensure that the object's data is used in a controlled manner, leading to more secure and stable code. Overall, OOP offers numerous benefits in software development and is widely used in a variety of programming languages, including Java, C++, and Python.