OOP in C#


OOP in C#

Class

Blue print of Real word object
Simply class is provide common structure to guide for making something
OR
Defines the characteristics of an entity, and includes properties that define the types of data that the object can contain and methods that describe the behavior of the object.
Example: Animal is commonly using noun. So Animal has name,eye, body, leg etc.... these feature common for all animal.

Object

Object is real word entity. Feature, An object is a block of memory that has been allocated and configured according to the blueprint (class).Objects are also called instances
Example: Animal = {dog, cat}
Dog and Cat are real word existing thing.


Class vs. Object
 Class
 Object
Existence
Logical existence
Physical existence
Memory Allocation
Memory space is not allocated, when it is created.
Memory space is allocated, when it is created.
Declaration/definition
Definition is created once.
it is created many time as you require.

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