Abstract class vs Interface | OOP Programming | Dart | Flutter | @thecodecollege

OOP in Dart Language | Flutter Programming | OOP in Dart in Hindi/Urdu @thecodecollege

Object Oriented programming (OOP) is a programming paradigm that relies on the concept of classes and objects. It is used to structure a software program into simple, reusable pieces of code blueprints (usually called classes), which are used to create individual instances of objects. There are many other object-oriented programming languages except dart that includes JavaScript, C++, Java, and Python.
In this lecture we will discuss about Abstract and Interface.
An abstract class is a type of class that doesn't allow for object instantiation. This tool exists so that developers may further generalize their class blueprints into interfaces. As such, abstract classes are used to define methods and properties without including implementation details. These methods, properties and other details make up the interface of the Class. Dart makes use of these class interfaces to create a description of the complex relationships between classes. This enables Inheritance, Implementations and Mixins despite the language only allowing a single inheritance model.

OOP Class and Object Concept : https://youtu.be/A9WTvNXk3mc

OOP Class and Object Implementation: https://youtu.be/lvhdu63rS68

Constructor: https://youtu.be/eSO-zt7DSYc

Syntactic and Named Constructor in dart: https://youtu.be/MDAiR9H6lAg

getter and setter in Dart: https://youtu.be/kEcTTPCtT68

Inheritance: https://youtu.be/ji3-qhkXiz4

Method overriding: https://youtu.be/cuHLfWaJBC0

Constructor in Inheritance: https://youtu.be/lpMmf_gXXGU


What is Object?

Object is an entity. Objects are declared to access functions and data declared in a class.
For accessing the class properties and methods, we use. (Dot) operator.

What Class?

Dart classes are the blueprint of the object, or it can be called object constructors. A class can contain fields, functions, constructors, etc. It is a wrapper that binds/encapsulates the data and functions together; that can be accessed by creating an object.

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lecture 2 – Dart Programming | Variables : https://youtu.be/7-9iMbXdEFc

lecture 3 – Dart Programming | Data types: https://youtu.be/kyW31fmSF80

lecuter 4 - Dart Programming Tutorial - final and constant: https://youtu.be/1WAfj7qJ0Os

lecture 5 - Dart Programming Tutorial – Operators: https://youtu.be/Lu8LJ2TPkrE

Lecture 6 - Dart Programming Tutorial – Equality and relational operator: https://youtu.be/w4-acOCyvzs

HLecture 7 - Dart Programming Tutorial – Control flow: https://youtu.be/c8k5xbBkI_o

Lecture 8 - Dart Programming Tutorial – Logical operator: https://youtu.be/-ku91Z1CxAs

Lecture 9- Dart Programming Tutorial – for loop: https://youtu.be/f32_5_M8KZk

Lecture 10 – Dart Programming Tutorial – while and do while: https://youtu.be/H2ERldsn-sk

Lecture 11 – Dart Programming Tutorial – switch statement: https://youtu.be/I0Cp100PMbs

Lecture 12 – Dart Programming Tutorial – functions : https://youtu.be/O07bzGbrGO4

Lecture 13 – Dart Programming Tutorial – return type: https://youtu.be/wqb6szAgzvY

Lecture 14 – Dart Programming Tutorial – fat arrow method: https://youtu.be/WL6LCGalKqg

Lecture 15 – Dart Programming Tutorial – arguments: https://youtu.be/y17zh4P-fGA

Lecture 16 – Dart Programming Tutorial – Optional Positional Parameters: https://youtu.be/9Mhb-EVYEk8

Lecture 17 – Lexical Scope: https://youtu.be/s8UBQQVni6k