Java Basic OOP Concepts | Features of OOPs in Java | Java Tutorial 2023 | Parnika Tutorials

"Java Basic OOP Concepts | Features of OOPs in Java |Object Oriented Programming (OOP)| Java Tutorial for Beginners 2023 | Parnika Tutorials #oop #oops #objectorientedprogram #javaoop #javaclasses #featuresjava #java #javafullcourse #javatutorials #javacompletecourse#parnikatutorials #javacourse #java2023 #javacourse2023 00:00 - Introduction 01:00 - Class and object 05:53 - Encapsulation 08:50 - Data abstraction 13:25 - Inheritance 18:17 - Polymorphism previous video = #18 STRINGBUFFER CLASS AND STRINGBUFFER METHODS - JAVA PROGRAMMING https://youtu.be/FPIfr7FyD-M Social media Links: Instagram: https://www.instagram.com/parnikatutorials/ Website: http://parnikatutorials.in/ Email id: parnikatutorials@gmail.com To get the regular updates: Telegram link: https://t.me/Parnikatutorials Facebook: https://m.facebook.com/profile.php?id=109245950811428&ref=content_filter Linkedin: https://www.linkedin.com/in/parnika-tutorials-a8a9831b2/ Pinterest: https://in.pinterest.com/parnikatutorials0892/ Playlists: Virtual Coffee with Jagadeesh: https://youtube.com/playlist?list=PL4x0v29DZ2pArePUk30o6Twn7sqnqbYCH Digital Logic: https://www.youtube.com/watch?v=iJN9q01OWtw&list=PL4x0v29DZ2pA2ZmL3dclnA-HfHkFAy0GI Computer Organization and Architecture: https://www.youtube.com/watch?v=iJN9q01OWtw&list=PL4x0v29DZ2pBRd8bChJJFtTn6ClJhKzfZ C Programming: https://www.youtube.com/watch?v=h9LtX_R-7uA&list=PL4x0v29DZ2pAIQdtRr-1zaYnqGiD_fU0M Data Structures: https://www.youtube.com/watch?v=m51BGPXdPAQ&list=PL4x0v29DZ2pCtKml6NNoBhYK4K_QnsCA_ Theory of Computation: https://www.youtube.com/watch?v=iJN9q01OWtw&list=PL4x0v29DZ2pDq-5SI9KlYxPDKdYCcmgJm Compiler Design: https://www.youtube.com/watch?v=iJN9q01OWtw&list=PL4x0v29DZ2pBsF-lPUHQ_8uRy-LbDSHIH Operating Systems: https://www.youtube.com/watch?v=vCCmq8hTC8Y&list=PL4x0v29DZ2pD6MzSQMIDSawLSKUZTFfxE Databases: https://www.youtube.com/watch?v=iJN9q01OWtw&list=PL4x0v29DZ2pCYEa9s3r5zWrFYIxGivlEC Computer Networks: https://www.youtube.com/watch?v=iJN9q01OWtw&list=PL4x0v29DZ2pBBOq-QsHtCuA53IlRxIQNm For GATE PYQs and much more explore: https://www.youtube.com/c/ParnikaTutorials/playlists A class is a user defined blueprint or prototype from which objects are created. It represents the set of properties or methods that are common to all objects of one type. In general, class declarations can include these components, in order: Modifiers: A class can be public or has default access (Refer this for details). Class name: The name should begin with a initial letter (capitalized by convention). Superclass(if any): The name of the class’s parent (superclass), if any, preceded by the keyword extends. A class can only extend (subclass) one parent. Interfaces(if any): A comma-separated list of interfaces implemented by the class, if any, preceded by the keyword implements. A class can implement more than one interface. Body: The class body surrounded by braces, { }. Object is a basic unit of Object Oriented Programming and represents the real life entities. A typical Java program creates many objects, which as you know, interact by invoking methods. An object consists of: State : It is represented by attributes of an object. It also reflects the properties of an object. Behavior : It is represented by methods of an object. It also reflects the response of an object with other objects. Identity : It gives a unique name to an object and enables one object to interact with other objects. Data Abstraction is the property by virtue of which only the essential details are displayed to the user.The trivial or the non-essentials units are not displayed to the user. Ex: A car is viewed as a car rather than its individual components. It is defined as the wrapping up of data under a single unit. It is the mechanism that binds together code and the data it manipulates. Inheritance is an important pillar of OOP(Object Oriented Programming). It is the mechanism in java by which one class is allow to inherit the features(fields and methods) of another class. Let us discuss some of frequent used important terminologies: Super Class: The class whose features are inherited is known as superclass(or a base class or a parent class). Sub Class: The class that inherits the other class is known as subclass(or a derived class, extended class, or child class). The subclass can add its own fields and methods in addition to the superclass fields and methods. Reusability: Inheritance supports the concept of “reusability”, i.e. when we want to create a new class and there is already a class that includes some of the code that we want, we can derive our new class from the existing class. By doing this, we are reusing the fields and methods of the existing class. It refers to the ability of OOPs programming languages to differentiate between entities with the same name efficiently. This is done by Java with the help of the signature and declaration of these entities.

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