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Objects are fundamental features of object-oriented programming languages. They are created from classes, which define their behavior and attributes. Objects are instances of these classes, and they have properties and methods that can be accessed and manipulated by the programmer.

Objects can represent anything, from a person or an animal to a car or a house. They can also represent abstract concepts and ideas, such as a bank account or a shopping cart on a website. Objects provide a way to model real-world entities and systems in code, allowing programmers to create complex applications with ease.

Each object has its own state and behavior, which can be modified and interacted with through its methods and properties. For example, a car object may have a color property that can be changed, and a method for starting the engine. The programmer can create and manipulate as many instances of the car object as they need, each with a unique state and behavior.

Objects can also interact with each other through method calls and property access. For example, a car object may have a driver property that links it to a person object representing the driver. The car object may call methods on the driver object, such as “fastenSeatBelt”, to ensure the driver is safe before starting the engine.

One of the benefits of using objects is their ability to encapsulate data and behavior. This means that the internal details of an object are hidden from the outside world, and can only be accessed through defined interfaces. This can make code easier to read and maintain, as well as improving security and reducing errors.

In summary, objects are instances of classes that represent real-world entities and concepts. They have properties and methods that can be accessed and manipulated by the programmer, and can interact with other objects through method calls and property access. Objects provide a powerful way to model complex systems and encapsulate data and behavior, making them an essential feature of modern programming languages.