An abstract class, which is similar to an interface, defines a class that cannot be instantiated . Abstract classes keep your code honest and type safe. It ensures that all implementation subclasses define all the properties and methods that abstract class defines, but leaves the implementation to each subclass.19 Tem 2020
Read moreWhat is abstract class in flutter?
An abstract class, which is similar to an interface, defines a class that cannot be instantiated . Abstract classes keep your code honest and type safe. It ensures that all implementation subclasses define all the properties and methods that abstract class defines, but leaves the implementation to each subclass.19 Tem 2020
Read moreWhy abstract class is used in Dart?
Usage of Abstract class Because every subclass must override the parent class method by provides its own implementation . Thus, we can force the subclass to provide implementation to that method, so that is the benefit to make method abstract. We don’t require the give implementation in the parent class.
Read moreIs Dart support multiple inheritance?
Dart doesn’t support multiple inheritance . Multi-level − A class can inherit from another child class.
Read moreDoes flutter support multiple inheritance?
For example, Flutter supports mixins calling super() and extending from a class other than Object , but the syntax is expected to change before appearing in all Dart SDKs. For details, see the mixin specification.
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