The Object-Oriented Approach

In programming, a thing that is describable and has a certain set of actions can be referred to as an object. An object might represent a real-life entity with a certain number of actions to perform. A dog can be described by using certain states, such as color, breed, age, and so on, and performs certain actions, such as barking, running, wagging its tail, and so on. A table fan can be described by color, speed, direction, and so on, and perform actions such as changing speed, changing direction, rotating, and so on.

In OOP, data and code are bundled together into an entity, which is known as an object. Objects interact with each other. Consider a teacher object and a student object. The teacher might have certain subjects to offer and the student might enroll in these subjects. Hence, if we consider enrolling as an action of the student, then the student object might need to interact with the teacher object regarding the available subjects and register...