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polymorphism in dart

Codeimpressive answered on April 15, 2023 Popularity 7/10 Helpfulness 2/10

answer polymorphism in dart

polymorphism in dart

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Polymorphism is a fundamental concept in object-oriented programming 
that allows objects of different classes to be treated as if they are 
objects of a common superclass. In Dart, polymorphism can be achieved 
through inheritance and interfaces.

Inheritance allows a subclass to inherit properties and methods from
a superclass. This means that an object of a subclass can be treated as
an object of its superclass

For Example:

abstract class Vehicle {
  void start();
  void stop();
}

class Car implements Vehicle {
  @override
  void start() {
    print('Car started');
  }

  @override
  void stop() {
    print('Car stopped');
  }
}

void main() {
  Vehicle vehicle = Car();
  vehicle.start(); // Output: Car started
  vehicle.stop(); // Output: Car stopped
}
In this example, the 'Vehicle' interface defines two methods: 
'start()' and 'stop()'. The 'Car' class implements the 'Vehicle' interface 
by providing implementations for these two methods. The 'main()' function 
creates an object of Car and assigns it to a variable of type Vehicle.
The 'start()' and 'stop()' methods of the 'Car' class are called,
even though the variable is of type 'Vehicle'.

Popularity 7/10 Helpfulness 2/10 Language dart

Source: Grepper

Tags: dart polymorphism

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Contributed on Apr 15 2023

Codeimpressive

0 Answers Avg Quality 2/10

polymorphism in dart

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