Birthday patterns

 

python

standard data types

immutable

numbers

strings

tupples

mutable

lists

sets

dictionaris

object oriented programming

object is an real world entity such as pen ,chair,table,etc

object oriented programming is methodology or paradigma to design a program using classes and objet.

it simplyfies software development and maintainance by providing some concepts.

class

inheritence

polymorphism

encapsulation

abstaction

class:

collection of object

Inheritence:

when one object aquires all the properties and behavior of a parent object is called inheritence

it provides code reuseability
it is used to achieve run time polymorphism

polymorphism:

one task perform in different ways.

Abstraction:

Hiding internal details and showing functionality is known as abstrction

encapsulation:

Binding code and data into a single unit are known as encapsulation

Difference between pop and oop

pop	oop
It deals with algorithms	It deals with data
programs are divided into functions	programs are divided into objects
Most of the function share global data	data structures characterizes objects.
data move from function to function	function that operate on data are bind to form classes
functions are responsible for tranforming from one form to another	data is hidden cannot be accessed by out side functions
It is top down approach	It is bottom up approach
It needs very less memory	It needs more memory then pop
It does not have any access specifiers	It has access specifiers like private,public and protected.
It is less secure	It is more secure
It follows no overloading	It follows the operator and function overloading