Class-Object

Python is an object oriented programming language. Unlike procedure oriented programming, where the main emphasis is on functions, object oriented programming stress on objects. Object is simply a collection of data (variables) and methods (functions) that act on those data. And, class is a blueprint for the object. We can think of class as a sketch (prototype) of a house. It contains all the details about the floors, doors, windows etc. Based on these descriptions we build the house. House is the object. As, many houses can be made from a description, we can create many objects from a class. An object is also called an instance of a class and the process of creating this object is called instantiation

class & object

class computer

class computer:

    #def function __init__
    def __init__(self,cpu,ram):
        self.cpu = cpu
        self.ram = ram
    # def function config
    def config(self):

        print('config is ;', self.cpu, self.ram)

comp1 = computer('i5',8)
comp2 = computer('r5',8)

comp2.config()
comp1.config()

constructor

self

    class computer:

         def __init__(self):
            self.name = 'aakash'
            self.age = 17
             
         def update(self):

            self.age = 30

         def compare(self,other):

             if self.age == other.age:
                 return True

             else:
                 print('different')

                 return False

    c1 = computer()
    c1.age =50
    c2 = computer()


    if c1.compare(c2):
        print('same')

    print(c1.name)
    print(c2.name)

inner class outer class

outer class

    class student:

        def __init__(self,name,rollno):
            self.name = name
            self.rollno = rollno
            self.lap = self.Laptop()

        def show(self):

            print(self.name, self.rollno)
            self.lap.show()

inner class

        class Laptop:

            def __init__(self):
                self.brand = 'HP'
                self.cpu = 'i5'
                self.ram = 8

            def show(self):

                print(self.brand, self.cpu, self.ram)

con

    s1 = student('aakash',2)
    s2 = student('dhaval',1)

    print(s1.name, s1.rollno)

    s1.show()

Information

BY aakash padhiyar

8140171224