Jassif Team Institution

class Person:
  def __init__(self, name):
    self.name = name

  def greet(self):
    print("Hello, my name is " + self.name)

p1 = Person("Emil")
p1.greet()

class Calculator:
  def add(self, a, b):
    return a + b

  def multiply(self, a, b):
    return a * b

calc = Calculator()
print(calc.add(5, 3))
print(calc.multiply(4, 7))

class Person:
  def __init__(self, name, age):
    self.name = name
    self.age = age

  def get_info(self):
    return f"{self.name} is {self.age} years old"

p1 = Person("Tobias", 28)
print(p1.get_info())

class Person:
  def __init__(self, name, age):
    self.name = name
    self.age = age

  def celebrate_birthday(self):
    self.age += 1
    print(f"Happy birthday! You are now {self.age}")

p1 = Person("Linus", 25)
p1.celebrate_birthday()
p1.celebrate_birthday()

class Person:
  def __init__(self, name, age):
    self.name = name
    self.age = age

p1 = Person("Emil", 36)
print(p1)

class Person:
  def __init__(self, name, age):
    self.name = name
    self.age = age

  def __str__(self):
    return f"{self.name} ({self.age})"

p1 = Person("Tobias", 36)
print(p1)

class Playlist:
  def __init__(self, name):
    self.name = name
    self.songs = []

  def add_song(self, song):
    self.songs.append(song)
    print(f"Added: {song}")

  def remove_song(self, song):
    if song in self.songs:
      self.songs.remove(song)
      print(f"Removed: {song}")

  def show_songs(self):
    print(f"Playlist '{self.name}':")
    for song in self.songs:
      print(f"- {song}")

my_playlist = Playlist("Favorites")
my_playlist.add_song("Bohemian Rhapsody")
my_playlist.add_song("Stairway to Heaven")
my_playlist.show_songs()

class Person:
  def __init__(self, name):
    self.name = name

  def greet(self):
    print("Hello!")

p1 = Person("Emil")

del Person.greet

p1.greet() # This will cause an error

class BankAccount:
  def __init__(self, account_holder, balance=0):
    self.account_holder = account_holder
    self.balance = balance

  def deposit(self, amount):
    self.balance += amount
    return f"Deposited ${amount}. New balance: ${self.balance}"

  def withdraw(self, amount):
    if amount <= self.balance:
      self.balance -= amount
      return f"Withdrew ${amount}. New balance: ${self.balance}"
    else:
      return "Insufficient funds"

  def __str__(self):
    return f"Account holder: {self.account_holder}, Balance: ${self.balance}"

account = BankAccount("John", 1000)
print(account.deposit(500))
print(account.withdraw(200))
print(account)