07/01/25
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Q)What are the differences between POP and OOP?

   POP                                               OOP
   ***************************************
   1)function(procedure)                       object is the fundamental unit.
   is the base unit of the application.

   2)data and code that acts upon          organised
   data are not properly organised.

   3)How to process data is given        data and code that acts
   importance. But data is given           upon data are given
   second class status.                         importance.

4)data is freely flowing                   data doesnot flow freely.
   in the entire application.                  data is made available to
                                                        eligible code only.

5) data is not secure.                         secure

6)can't handle complexity                   handles

7)Real world entities                       can be modelled.
can't be modelled
properly as data and
code are treated as
two different entities.
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Q)What is encapsulation?
=>Combining data and eligible code into a single unit is nothing but
encapsulation.
  (wrapping of data and code)
Note:- Encapsulation overcomes the limitations of POP
Q)What is a class?
  =>Programmatical means of implementing encapsulation is nothing but a class.
  =>A class is a user defined data type.
  =>Blue Print/Plan of an object is nothing but a class.
  =>A class is an encapsulated unit.

Q)What is an object?
  =>An instance of a class is nothing but an object.
  =>An object is a fundamental data storage area of  an object oriented application.
  =>An object can be treated as a software bundle that holds application's 
  data and code to process that data associated with it.
 =>An object is an encapsulated unit.
 =>Physical realisation of a class is nothing but an object.