Extending a Class
Explore how to extend classes in Dart through inheritance by creating subclasses like Beverage from a Product superclass. Understand the use of extends, super constructors, and private instance variables to build structured and reusable code.
We'll cover the following...
We'll cover the following...
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 ...