Prerequisite: Object Oriented Programming in Python
Let’s write a simple Python program using OOP concept to perform some simple bank operations like deposit and withdrawal of money.
First of all, define class Bankacccount. This step is followed by defining a function using __init__. It is run as soon as an object of a class is instantiated. This __init__ method is useful to do any initialization you want to do with object, then we have the default argument self.
# BankAccount class class Bankaccount:
def __init__( self ):
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This step is followed by declaring that balance is 0 using self argument then we simply print a statement welcoming to Machine. In function deposit and withdraw , amount is taken as input(in float) and is then added/subtracted to the balance. Thus resultant balance is printed in next line.
# Function to deposit amount def deposit( self ):
amount = float ( input ( "Enter amount to be deposited: " ))
self .balance + = amount
print ( "\n Amount Deposited:" , amount)
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Use an if condition to check whether there is a sufficient
amount of money available in the account to process a fund withdrawal.
# Function to withdraw the amount def withdraw( self ):
amount = float ( input ( "Enter amount to be withdrawn: " ))
if self .balance > = amount:
self .balance - = amount
print ( "\n You Withdrew:" , amount)
else :
print ( "\n Insufficient balance " )
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Next, we use a display function to display the remaining balance in the account. Then we create a object and call it to get the program executed.
# Function to display the amount def display( self ):
print ( "\n Net Available Balance =" , self .balance)
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Below is the implementation:
# Python program to create Bankaccount class # with both a deposit() and a withdraw() function class Bank_Account:
def __init__( self ):
self .balance = 0
print ( "Hello!!! Welcome to the Deposit & Withdrawal Machine" )
def deposit( self ):
amount = float ( input ( "Enter amount to be Deposited: " ))
self .balance + = amount
print ( "\n Amount Deposited:" ,amount)
def withdraw( self ):
amount = float ( input ( "Enter amount to be Withdrawn: " ))
if self .balance> = amount:
self .balance - = amount
print ( "\n You Withdrew:" , amount)
else :
print ( "\n Insufficient balance " )
def display( self ):
print ( "\n Net Available Balance=" , self .balance)
# Driver code # creating an object of class s = Bank_Account()
# Calling functions with that class object s.deposit() s.withdraw() s.display() |
Output:
Hello !!! Welcome to Deposit&Withdrawal Machine Enter amount to be deposited: Amount Deposited: 1000.0 Enter amount to be withdrawn: You Withdrew: 500.0 Net Available Balance = 500.0