INSTANCE VARIABLES:
===================
ACCESSING OF INSTANCE VARIABLES:
================================
==> POSSIBLE ONLY WITH OBJECT REFERENCE VARIABLE.
Syntax:
	object-reference.instance-variable-name

# Accessing of Instance Variables

class instanceVariables:
    def __init__(self):
        self.a = 1221
        self.b = 1234

    def m1(self):
        self.c = 97
        self.d = 79

iv = instanceVariables()

print(iv.a)
print(iv.b)

iv.m1()

print(iv.c)
print(iv.d)

===================================================
Static Variables:
=================
The values of variables are not getting changed from object to object are called as "static variables".

the static variable can create an object only one time 
and the same copy of static variable can be shared among different objects.

ex: o1 ==> a = 123
o2 ==> a = 123
==> to define the static variable, we can use:
	1) using the class name
		Syntax:
			class-name.static-variable-name
	2) without the class name, we can define the static variable inside the class but not in method and not in constructor.
		Syntax:
			static-variable-name = value

==> The Static variable can define:
	1) Inside the constructor 
	2) Inside the method
	3) Inside the class but outside to the class method.

==> To access the static variable, we can use:
	1) Class name
		Syntax:
			class-name.static-variable-name
	2) Object reference
		Syntax:
			object-reference.static-variable-name

# Static Variable

class staticVariables:
    p = 2000
    q = 4000
    def __init__(self):
        staticVariables.a = 100
        staticVariables.b = 200

    def m1(self):
        staticVariables.c = 300
        staticVariables.d = 400

sv = staticVariables()

# accessing static variables using class name

print(staticVariables.p)
print(staticVariables.q)
print(staticVariables.a)
print(staticVariables.b)

sv.m1()

print(staticVariables.c)
print(staticVariables.d)

# accessing of static variables with object reference

print(sv.p);print(sv.q);print(sv.a);print(sv.b);print(sv.c);print(sv.d)

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

Instance Variable Vs Static Variables:
======================================
The Copy of Instance Variables can be differ from object to object.

The copy of Static variables can be same among multiple objects.

# Instance Variable Vs Static Variable

class test:
    def __init__(self):
        self.a = 100
        self.b = 200
    def m1(self):
        test.c = 1000
        test.d = 2000

t1 = test()
t2 = test()

t1.m1()
print("t1 data:",t1.a,t1.b,t1.c,t1.d)
t2.m1()
print("T2 data:",t2.a,t2.b,t2.c,t2.d)

# modifying of instance and static variables

t1.b = 1234     # instance variable modification
test.c = 9779

print("t1 data:",t1.a,t1.b,t1.c,t1.d)
print("T2 data:",t2.a,t2.b,t2.c,t2.d)

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

3) Method Variables:
====================
also called as "local variables".

# Scope of Instance and Static Variables
# Method Variables

class Test:
    def __init__(self):
        self.a = 121
        Test.b = 123

    def m1(self):
        x = 100
        y = 200
        print("Instance Variable value = ",self.a)
        print("Static Variable Value = ",Test.b)
        print("Local/Method Variables are = ",x,y)

    # def m2(self):
    #     print("Local/Method Variables are = ", x, y)




t = Test()

t.m1()
t.m2()

=====================================
Types of Methods:
================
three types:
	1) Instance Methods ==> The method with instance variables
	2) Static Methods ==> The method with static variables
	3) Class methods ==> the data of class methods can define with "cls"