Dart encapsulation

Data Encapsulation Data Encapsulation is binding data and functions that use data into one unit . It is also referred to as data hiding and information hiding. Unlike C++ and Java , Dart does not have keywords for restricting access like private , public and protected .

Dart supports polymorphism . Polymorphism allows a family of objects to adhere to a single interface while allowing different implementations. Let’s add another concrete class named Plane (Figure 4.1).28 Oca 2016

Types of Polymorphism

Method overriding occurs in dart when a child class tries to override the parent class’s method . When a child class extends a parent class, it gets full access to the methods of the parent class and thus it overrides the methods of the parent class.