shreezan123

class Library:
  d1 = {}
  def __init__(self):
    pass
  def add_book(self,book):
    self.d1[book] = True
    
  def check_out_book(self,book):
    if book in self.d1:
      del(self.d1[book])

shreezan123

class FoodCalculator:
  current_price = 0
  def __init__(self):
    pass
  def add_item(self,value):
    self.current_price = value #assign to instance variable
  def get_tax(self,tax_rate):
    return self.current_price*(tax_rate*0.01)
  def get_tip(self,taxP,tipP):
    after_tax = self.current_price+(0.01*taxP*self.current_price)

shreezan123

class Incrementor:
  array = []
  value = 0
  arrayVals = []
  def __init__(self,array):
    self.array = array
  def add_value(self,value):
    self.value = value
  def add_values(self,valuesArr):
    self.arrayVals = valuesArr

shreezan123

class ShoppingList:
  cart = {}
  
  def __init__(self):
    pass
  def add_item(self,name,price):
    self.cart[name] = price
  def remove_item(self,name):
    if name in self.cart: