Kế thừa (Inheritance) trong Dart

class Animal {
  String name;
  Animal(this.name);
  
  void makeSound() => print("Some sound");
}
 
class Dog extends Animal {
  Dog(String name) : super(name);
  
  @override
  void makeSound() => print("Woof!");
}

class Child extends Parent {
  Child() : super();  // Gọi parent constructor
  
  @override
  void method() {
    super.method();  // Gọi parent method
    // Additional logic
  }
}