Dart Inheritance : Multi-level Hierarchy

Multi-level Hierarchy :

• In this type of inheritance, parent class is inherited by multiple subclasses.

•   class One {
  
        void show () {
            print('object of one');
        }
    }
  
    class Two extends One {
  
        void her () {
            pritn('object of two');
        }
    }
  
    class Three extends Two {}
  
    void main() {
        var obj = One();
  
        var obj1 = Three();
  
        obj.show();
  
        obj1.her();
  
    }
  

•   object of one
    object of two
  
    Exited.