# A class is a template and a group of objects combine together to form a class

# class is a group of ppl with same behaviour

# Each object is called as instace variable

# Contruct an object for you - Constructors

# Encapsulation means - If you dont know what is inside the object then that means its encapsulated.

# The concept of hidding the details from a user means encapsulation

# Method is another function which resides inside the class and "self" should be used within method()

# Constructor has the same name as the name of the class

# A class name or variable can start with "_"(underscore)

#Ex : tony = BankAccount()

# print(tony.getBalance()) #Here "tony" is the "self"

# return self_balance

class BankAccount:

def __init__(self,n,b): #-----------------------

self._name=n # >>>> Constructor <<<<<

self._balance=b #-----------------------

def deposit(self,dep): #----------------------------------------------------------

self._balance=self._balance+dep # >>> Method ; This is to add additional business logic <<< Method is also know as Accessor or getter

#----------------------------------------------------------

def getBalance(self): #----------------------------------------------------------

return self._balance # >>> Method ; This is to add additional business logic <<<

#----------------------------------------------------------

def withdraw(self,w): #----------------------------------------------------------

self._balance=self._balance-w # >>> Method ; This is to add additional business logic <<<

#----------------------------------------------------------

def changeName(self,newName): #----------------------------------------------------------

self._name=newName # >>> Method ; This is to add additional business logic <<<

#----------------------------------------------------------

def setBalance(self,b): #----------------------------------------------------------

self._balance=b # >>> Method or it is also called as mutator or setter because this function allows some correction <<<

#----------------------------------------------------------

#===================================Save the below separately as tony.py==============================================

from tony-objandclass import BankAccount

tony=BankAccount("tonztoy",123456) #Here "tony" represents the address space for object and also reresent the "self"

tony.deposit(74574)

print("tonztoy has:",tony.getBalance())

tony.withdraw(23)

print ("tonztoy balance is:",tony.getBalance())

tony.changeName("preetha")

#======================================================================================================================

#we need to run the pgm by "python tony.py"