Classes and objects from the essential part of Object-oriented programming, where a class can be considered as a construct that encapsulates a group of variables and methods; whereas, an object acts as member or instance of that class.
Lets us differentiate between these two:
| Class | Object |
|---|---|
| A class is a blueprint from which you can create the instance, i.e., objects. | An object is the instance of the class, which helps programmers to use variables and methods from inside the class. |
| A class is used to bind data as well as methods together as a single unit. | Object acts like a variable of the class. |
| Classes have logical existence. | Objects have a physical existence. |
| A class doesn't take any memory spaces when a programmer creates one. | An object takes memory when a programmer creates one. |
| The class has to be declared only once. | Objects can be declared several times depending on the requirement. |
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