Inheritance in Dart and Flutter. In Dart, one class can inherit another class i.e dart can create a new class from an existing class. We make use of extend keyword to do so.
Inheritance in Dart and Flutter
In Dart, one class can inherit another class i.e dart can create a new class from an existing class. We make use of extend keyword to do so.
Parent Class: It is the class whose properties are inherited by the child class. It is also known as a base class or superclass. Child Class: It is the class that inherits the properties of the other classes. It is also known as a deprived class or subclass.
Types of Inheritance:
Single Inheritance: When a class inherits a single parent class than this inheritance occurs. Multiple Inheritance: When a class inherits more than one parent class than this inheritance occurs. Dart doesn’t support this. Multi-Level Inheritance: When a class inherits another child class than this inheritance occurs. Hierarchical Inheritance: More than one classes have the same parent class. Important Points:
Child classes inherit all properties and methods except constructors of the parent class. Unlike Java, Dart also doesn’t support multiple inheritance.
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