program to demonstrate super keyword super is used to refer to parent class

class Laptop {
  // Method
    void show() {
        print("Laptop show method");
    }
}

class MacBook extends Laptop {
    void show() {
        super.show(); // Calling the show method of the parent class
        print("MacBook show method");
    }
}

void main() {
  // Creating an object of the MacBook class
  MacBook macbook = MacBook();
  macbook.show();
}

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program to call named constructor of parent class using super keyword

class Employee {
  // Named constructor
  Employee.manager() {
    print("Employee named constructor");
  }
}

class Manager extends Employee {
  // Named constructor
  Manager.manager() : super.manager() {
    print("Manager named constructor");
  }
}

void main() {
  Manager manager = Manager.manager();
}

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program to demonstrate super keyword in multilevel inheritance

class Laptop {
  // Method
  void display() {
    print("Laptop display");
  }
}

class MacBook extends Laptop {
  // Method
  void display() {
    print("MacBook display");
    super.display();
  }
}

class MacBookPro extends MacBook {
  // Method
  void display() {
    print("MacBookPro display");
    super.display();
  }
}

void main() {
  var macbookpro = MacBookPro();
  macbookpro.display();
}

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