what is a class in python code example
Example 1: 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!
Example 2: 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()
Example 3: 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.width
Example 4: 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 object
Example 5: python class
class Person:#set name of class to call it
def __init__(self, name, age):#func set ver
self.name = name#set name
self.age = age#set age
def myfunc(self):#func inside of class
print("Hello my name is " + self.name)# code that the func dose
p1 = Person("barry", 50)# setting a ver fo rthe class
p1.myfunc() #call the func and whitch ver you want it to be with
Example 6: what is a class in python
A class is a block of code that holds various functions. Because they
are located inside a class they are named methods but mean the samne
thing. In addition variables that are stored inside a class are named
attributes. The point of a class is to call the class later allowing you
to access as many functions or (methods) as you would like with the same
class name. These methods are grouped together under one class name due
to them working in association with eachother in some way.