Gain insights into Dart, an object-oriented language crucial for Flutter development. Delve into its fundamentals and prepare to craft high-quality native interfaces on iOS and Android.

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Learn Dart for free with this interactive course. Dart is a clean, simple, class-based, object-oriented language with more structure than JavaScript, the programming language it's heavily based on. However, you can't have a conversation about Dart without mentioning Flutter. 

Flutter is Google's mobile UI framework for crafting high-quality native interfaces on iOS and Android. Flutter applications are written using the Dart programming language, which has helped make Dart a beloved language by the developer community. Before you can start fluttering out Flutter applications, you must learn Dart. This course will help you learn the fundamentals of Dart and start your journey to learning Flutter. Start learning today.

Learn Dart: First Step to Flutter

Let's look at an example to better understand inheritance.

## Syntax

In Dart, we use `extends` to create a subclass.



class subclassNAme extends superclassName

## Implementation

Let’s look at an example of a vending machine. In a food vending machine, we have several types of products such as beverages, chocolates, cookies, etc. The noticeable thing here is that we always implement an inheritance relationship between classes when they have common properties. For example, in the case of products, all the products in a vending machine have names, prices, expiration dates, etc. Also, the *IS A* relationship stands valid.

* A beverage is a product.
* Chocolate is a product.
* A cookie is a product.

So, from the above discussion, we can conclude that if there is a superclass named Product, we can derive the Beverage, Chocolate, Cookie, etc. subclasses from the superclass.

Let’s see how we would code the above classes in Dart.

Let's look at an example to better understand inheritance.

# Syntax

In Dart, we use `extends` to create a subclass.



# Implementation

Let’s look at an example of a vending machine. In a food vending machine, we have several types of products such as beverages, chocolates, cookies, etc. The noticeable thing here is that we always implement an inheritance relationship between classes when they have common properties. For example, in the case of products, all the products in a vending machine have names, prices, expiration dates, etc. Also, the *IS A* relationship stands valid.

* A beverage is a product.
* Chocolate is a product.
* A cookie is a product.

So, from the above discussion, we can conclude that if there is a superclass named Product, we can derive the Beverage, Chocolate, Cookie, etc. subclasses from the superclass.

Let’s see how we would code the above classes in Dart.

Let’s look at an example of inheritance in Dart.

Introduction

Getting Started with Dart

Data Types and Variables

Operators

Dart's Collection

Control Flow Statements

Exploring Functions

Classes

Where to Go From Here

Extending a Class

Syntax #

Implementation #