create and use python classes
class Mammal:
def __init__(self, name):
self.name = name
def walk(self):
print(self.name + " is going for a walk")
class Dog(Mammal):
def bark(self):
print("bark!")
class Cat(Mammal):
def meow(self):
print("meow!")
dog1 = Dog("Spot")
dog1.walk()
dog1.bark()
cat1 = Cat("Juniper")
cat1.walk()
cat1.meow()how to make a class in python
class Person:
def __init__(self, _name, _age):
self.name = _name
self.age = _age
def sayHi(self):
print('Hello, my name is ' + self.name + ' and I am ' + self.age + ' years old!')
p1 = Person('Bob', 25)
p1.sayHi() # Prints: Hello, my name is Bob and I am 25 years old!declare class python
# To create a simple class:
class Shape:
def __init__():
print("A new shape has been created!")
pass
def get_area(self):
pass
# To create a class that uses inheritance and polymorphism
# from another class:
class Rectangle(Shape):
def __init__(self, height, width): # The constructor
super.__init__()
self.height = height
self.width = width
def get_area(self):
return self.height * self.widthpython define class
class uneclasse():
def __init__(self):
pass
def something(self):
pass
xx = uneclasse()
xx.something()python classes
class Box(object): #(object) ending not required
def __init__(self, color, width, height): # Constructor: These parameters will be used upon class calling(Except self)
self.color = color # self refers to global variables that can only be used throughout the class
self.width = width
self.height = height
self.area = width * height
def writeAboutBox(self): # self is almost always required for a function in a class, unless you don't want to use any of the global class variables
print(f"I'm a box with the area of {self.area}, and a color of: {self.color}!")
greenSquare = Box("green", 10, 10) #Creates new square
greenSquare.writeAboutBox() # Calls writeAboutBox function of greenSquare objectpython classes
class Student:
def __init__(self, id, name, age):
self.name = name
self.id = id
self.age = age
def greet(self):
print(f"Hello there.\nMy name is {self.name}")
def get_age(self):
print(f"I am {self.age}")
def __add__(self, other)
return Student(
self.name+" "+other.name,
self.id + " "+ other.id,
str(self.age) +" "+str(other.age))
p1 = Student(1, "Jay", 19)
p2 = Student(2, "Jean", 22)
p3 = Student(3, "Shanna", 32)
p4 = Student(4, "Kayla", 23)
result = p1+p3Copyright © 2021 Codeinu
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