Object oriented concepts -Classes and objects

 Everything is an object in real world. In object-oriented programming, basic term is classes and objects. Class is a collection of objects and methods. Each class has some properties and functionalities.

For eg, A car is a class. Name of the car is like the classname. Brand of the car, color and size are the properties of the class. Running is the functionality of a car. It is the method.

Let us create a class in python. Here, the code begins…

Syntax:  class classname:

                   Variablename

Eg: class SampleClass:

               S = 10

Next, an object is created. The object accesses the Sum variable and it gets printed.

        Ob = SampleClass()

        Print(Ob.sum)

Add this code in a file “SampleClass.py”. While executing this, we get the following output.

Next, Average of three numbers using class is given below.

AvgClass.py

class AvgClass:

  a = 10

  b = 20

  c = 30

ob = AvgClass()

print((ob.a+ob.b+ob.c)/3)

Executing this code, it will give the Average of the three numbers as output.

 This is the first concept in object oriented programming.