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Check out our courses: Spring and Microservices Weekend Live Batch : https://bit.ly/spring-live-weekend Coupon: TELUSKO10 (10% Discount) Master Java Spring Development : https://bit.ly/java-spring-cloud For More Queries WhatsApp or Call on : +919008963671 website : https://courses.telusko.com/ Instagram : https://www.instagram.com/navinreddyofficial/ Linkedin : https://in.linkedin.com/in/navinreddy20 TELUSKO Android App : https://bit.ly/TeluskoApp Discord : https://discord.gg/D8hWe9BqfF In this lecture we will learn: - How to define variables in a class? - What is __init__() in python? - What is the use of the init() method? - Creation of objects in Python - How to set and extract values from a class? #1 - Every object has two things: Attributes and Behaviour. - Attributes are variables and behaviour is methods that are similar to functions. - In python, variables will be defined in a special method known as __init__ that should be present inside the class. - init() method must have an argument known as self with it. def __init__(self): - init() method in python works similarly to constructors that are present in other programming languages. - init() runs automatically as we do not need to call this method. - All methods other than init() will be executed only when they are called from somewhere in a program. - For every object, init() method will be get called once. So, if we create two objects then the init() method will execute two times. #2 - When an object of a class is created, the class is said to be instantiated. It is also known as object creation. variable= class_name() An object of that class will be created. - We can pass arguments to a class in the constructor itself for their execution. - Values of arguments can be accepted in a class in the init() method as its parameters. - The variable name of the object is passed automatically and gets accepted by the self in the init() method. class Computer: def __init__(self, CPU, ram): --(statements)-- com1=Computer('i5', '16') #3 - So, in actuality when the object is created, first we pass the object itself in an argument and then pass values of other parameters in it. - Whatever values you passed for different parameters in an object, will be assigned to an object through the self. def __init__(self, CPU, ram): - In a class variables are not local variables as they are associated with an object so we have to use the self with variables to fetch the values. - We bind data with every object so one object will have its own methods and variables. Python Tutorial to learn Python programming with examples Complete Python Tutorial for Beginners Playlist : https://www.youtube.com/watch?v=hEgO047GxaQ&t=0s&index=2&list=PLsyeobzWxl7poL9JTVyndKe62ieoN-MZ3 Python Tutorial in Hindi : https://www.youtube.com/watch?v=JNbup20svwU&list=PLk_Jw3TebqxD7JYo0vnnFvVCEv5hON_ew Github :- https://github.com/navinreddy20/Python- Java and Spring Framework For beginners with Spring Boot : - http://bit.ly/3LDMj8D Java Tutorial for Beginners (2023) :- http://bit.ly/3yARVbN Editing Monitors : https://amzn.to/2RfKWgL https://amzn.to/2Q665JW https://amzn.to/2OUP21a. Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmk... Telusko Hindi : https://www.youtube.com/channel/UCitz... Donation: PayPal Id : navinreddy20 Patreon : navinreddy20 http://www.telusko.com/contactus