The main difference in OOP as opposed to functional programming is that the data and code are bundled together in to one entity,which is known as an object.Object-oriented applications are usually split up into a number of objects that interact with each other. Each object is usually an entity of the problem,which is self-contained and has a bunch of properties and methods.The properties are the object's data,which basically means the variables that belong to the object.The methods(if you are coming from a functional background) are basically the functions that the object supports.Going one step further,the functionality that is intended for other objects to be accessed and used during interaction is called an object's interface.
_____: main point.
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