Inheritance in Dart

Inheritance is a powerful feature in the Dart programming language that allows you to create new classes from existing ones. This helps to promote code reuse and establish a hierarchical relationship between classes.

Here’s a quick overview of how inheritance works in Dart:

1. Base Class (Superclass): This is the class whose properties and methods are inherited by other classes.

2. Derived Class (Subclass): This is the class that inherits properties and methods from the base class.

3. extends Keyword: The extends keyword is used to create a subclass from a base class.

For example:

class Animal {
  void eat() {
    print("Animal is eating");
  }
}

class Dog extends Animal {
  void bark() {
    print("Dog is barking");
  }
}

void main() {
  var dog = Dog();
  dog.eat();  // Inherited from Animal class
  dog.bark(); // Defined in Dog class
}

In this example:

• Animal is the base class.
• Dog is the derived class that extends the Animal class.
• The Dog class inherits the eat method from the Animal class and also has its own bark method.

By using inheritance, the Dog class can reuse the eat method from the Animal class, which promotes code reuse and makes the code easier to manage and extend.