INSTANCE METHODS:
================

Setter and Getter methods:
==========================
to set instance variables
and to get instance variables ==> setter and getter methods.

Setter methods:
==============
==> use to set the instance variables
==> also called as "mutator methods"
Syntax:
	def setVariable(self, variable):
		self.variable = value

Getter Methods:
===============
==> use to get the instance variables
==> also called as "accessor methods"
Syntax:
	def getVariable(self):
		return self.variable

# Setter and Getter methods

class Student:
    def setName(self,name):
        self.name = name

    def getName(self):
        return self.name

    def setMarks(self,marks):
        self.marks = marks

    def getMarks(self):
        return self.marks

n = int(input("Enter number of students:"))

for i in range(n):
    s = Student()
    name = input("Enter the student name:")
    s.setName(name)

    marks = int(input("Enter marks of the student:"))
    s.setMarks(marks)
    
    print("Hi,",s.getName())
    print("Your Marks are:",s.getMarks())
====================================================

Class Methods:
==============
==> the methods with only class variables (static variables) called as "class methods".

@classmethod

==> class methods are always can call with "class name" or "object reference".

# Class Methods

class Animal:
    legs = 4        # static variable
    def m1(self):
        print("This is the Animal class.")

    @classmethod
    def walk(cls,name):
        print("{} walks with {} legs".format(name,cls.legs))

Animal.walk("Dog")

am = Animal()
am.walk("Cow")
=========================================================

Static Methods:
===============
==> are called as "general utility methods"
==> inside the static methods, we won't include, class variables and instance variables.\
the variables with "self" and with "cls" were not in static method.
==> static method, not required "self" or "cls" as parameter in the definition.
==> annotation:
	@staticmethod
==> calling of static method:
	use: class name or object reference

# static methods

class Calculator:
    @staticmethod
    def add(x,y):
        print("The Sum = ",x+y)

    @staticmethod
    def multy(x,y):
        print("The Product = ",x*y)

Calculator.add(100,200)

cl = Calculator()
cl.multy(23,27)

======================================
Passing of members of one class to another class:
=================================================
cls1:
	mem1
	mem2

cls2:
	mem2

# Passing the members of one class to another class.

class Employee:
    def __init__(self,eno,ename,esal):
        self.eno = eno
        self.ename = ename
        self.esal = esal

    def display(self):
        print("The Id of the employee = ",self.eno)
        print("Name of the employee = ",self.ename)
        print("Salary of the Employee = ",self.esal)

class Test:
    def modify(emp):
        emp.esal = emp.esal + 100000
        emp.display()

e = Employee(101,"Radhika",120000)
e.display()
Test.modify(e)

====================================

Inner Classes:
==============

# Inner class

class Outer:
    def __init__(self):
        print("Outer class Object Creation.")

    class Inner:
        def __init__(self):
            print("Inner class Object creation.")

        def m1(self):
            print("This is inner class method.")

o = Outer()
i = o.Inner()

i.m1()