1. Inheritance Definition and Importance: Inheritance is a core principle of object-oriented programming where a new class,  called a subclass or derived class, can inherit properties and methods  from an existing class, known as a superclass or base class. Example Clarification: In your example, the Car the class serves as the superclass, representing a generic car with a name property and a drive method.
The ElectricCar class is a subclass of Car, inheriting its properties and methods while introducing an additional chargeCapacity property specific to electric cars. Real-World Analogy: An  analogy to explain inheritance could be a “vehicle” superclass, with  “car” and “truck” subclasses inheriting common features like wheels and  engines but having their distinct properties and behaviors. class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
} The Car the class represents a basic car with a name property and a drive method. class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
} The ElectricCar the class extends the Car class, inheriting its properties and methods. It introduces an additional property chargeCapacity.
The ElectricCar class constructor initializes both the name and chargeCapacity properties using the super keyword to call the superclass constructor. 2. Method Overriding Definition and Purpose: Method overriding allows a subclass to provide a specific implementation of a  method that is already defined in its superclass. This enables  subclasses to tailor behavior to their specific needs while maintaining a  common interface. Example Explanation: In your code, the drive method is overridden in the ElectricCar subclass to provide a specialized message for electric vehicles.
The @override annotation ensures that the method in the subclass is indeed overriding a method from its superclass, providing clarity and preventing accidental overrides. Use Cases: Method overriding is commonly used in scenarios where a subclass needs to  customize behavior inherited from its superclass, such as providing  specialized functionality for different types of vehicles. class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
  
  @override
  void drive() => print('Driving an electric car');
} By adding the @override annotation, you explicitly indicate that you are overriding a method from the superclass. Putting It All Together Practical Demonstration: Your code snippets effectively demonstrate how inheritance and method overriding work together in Dart.
By instantiating an ElectricCar object and invoking its drive method, readers can witness firsthand how method overriding alters behavior based on subclass implementation. Real-World Relevance: Understanding inheritance and method overriding is essential for designing modular,  maintainable, and extensible software systems, particularly in complex  applications where classes and hierarchies abound // Inheritance
void main() {
  final electricVehicle = ElectricCar('TATA', 2900);
  electricVehicle.drive();
}

class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
}

class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
}

// Method Overriding
void main() {
  final electricVehicle = ElectricCar('TATA', 2900);
  print(electricVehicle.name);
  electricVehicle.drive();
}

class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
}

class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
  
  @override
  void drive() => print('Driving an electric car');
} In the main function, we create an instance of ElectricCar and call its drive method.


Since the drive method is overridden in the ElectricCar class, it prints "Driving an electric car". This  demonstrates how inheritance and method overriding work in Dart,  allowing for code reuse and the ability to specialize behavior in  sub classes. Understanding these concepts is crucial for building  maintainable and extensible object-oriented Dart applications. 🌟 Stay Connected! 🌟 Hey there, awesome reader! 👋 Want to stay updated with my latest insights,Follow me on social media! 🐦 📸 📘 💻 🌐 Sadanand Gadwal 1. Inheritance 1. Inheritance Definition and Importance: Inheritance is a core principle of object-oriented programming where a new class,  called a subclass or derived class, can inherit properties and methods  from an existing class, known as a superclass or base class. Example Clarification: In your example, the Car the class serves as the superclass, representing a generic car with a name property and a drive method. The ElectricCar class is a subclass of Car, inheriting its properties and methods while introducing an additional chargeCapacity property specific to electric cars. In your example, the Car the class serves as the superclass, representing a generic car with a name property and a drive method. Car name drive The ElectricCar class is a subclass of Car , inheriting its properties and methods while introducing an additional chargeCapacity property specific to electric cars. ElectricCar Car chargeCapacity Real-World Analogy: An  analogy to explain inheritance could be a “vehicle” superclass, with  “car” and “truck” subclasses inheriting common features like wheels and  engines but having their distinct properties and behaviors. class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
} class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
} The Car the class represents a basic car with a name property and a drive method. Car name drive class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
} class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
} The ElectricCar the class extends the Car class, inheriting its properties and methods. It introduces an additional property chargeCapacity. The ElectricCar class constructor initializes both the name and chargeCapacity properties using the super keyword to call the superclass constructor. The ElectricCar the class extends the Car class, inheriting its properties and methods. It introduces an additional property chargeCapacity . ElectricCar Car chargeCapacity The ElectricCar class constructor initializes both the name and chargeCapacity properties using the super keyword to call the superclass constructor. ElectricCar name chargeCapacity super 2. Method Overriding 2. Method Overriding Definition and Purpose: Method overriding allows a subclass to provide a specific implementation of a  method that is already defined in its superclass. This enables  subclasses to tailor behavior to their specific needs while maintaining a  common interface. Example Explanation: In your code, the drive method is overridden in the ElectricCar subclass to provide a specialized message for electric vehicles. The @override annotation ensures that the method in the subclass is indeed overriding a method from its superclass, providing clarity and preventing accidental overrides. In your code, the drive method is overridden in the ElectricCar subclass to provide a specialized message for electric vehicles. drive ElectricCar The @override annotation ensures that the method in the subclass is indeed overriding a method from its superclass, providing clarity and preventing accidental overrides. @override Use Cases: Method overriding is commonly used in scenarios where a subclass needs to  customize behavior inherited from its superclass, such as providing  specialized functionality for different types of vehicles. class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
  
  @override
  void drive() => print('Driving an electric car');
} class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
  
  @override
  void drive() => print('Driving an electric car');
} By adding the @override annotation, you explicitly indicate that you are overriding a method from the superclass. By adding the @override annotation, you explicitly indicate that you are overriding a method from the superclass. @override Putting It All Together Putting It All Together Practical Demonstration: Your code snippets effectively demonstrate how inheritance and method overriding work together in Dart. By instantiating an ElectricCar object and invoking its drive method, readers can witness firsthand how method overriding alters behavior based on subclass implementation. Your code snippets effectively demonstrate how inheritance and method overriding work together in Dart. By instantiating an ElectricCar object and invoking its drive method, readers can witness firsthand how method overriding alters behavior based on subclass implementation. ElectricCar drive Real-World Relevance: Understanding inheritance and method overriding is essential for designing modular,  maintainable, and extensible software systems, particularly in complex  applications where classes and hierarchies abound // Inheritance
void main() {
  final electricVehicle = ElectricCar('TATA', 2900);
  electricVehicle.drive();
}

class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
}

class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
}

// Method Overriding
void main() {
  final electricVehicle = ElectricCar('TATA', 2900);
  print(electricVehicle.name);
  electricVehicle.drive();
}

class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
}

class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
  
  @override
  void drive() => print('Driving an electric car');
} // Inheritance
void main() {
  final electricVehicle = ElectricCar('TATA', 2900);
  electricVehicle.drive();
}

class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
}

class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
}

// Method Overriding
void main() {
  final electricVehicle = ElectricCar('TATA', 2900);
  print(electricVehicle.name);
  electricVehicle.drive();
}

class Car {
  String name;
  
  Car(this.name);
  
  void drive() => print("Driving a Car");
}

class ElectricCar extends Car {
  double chargeCapacity;
  
  ElectricCar(String name, this.chargeCapacity) : super(name);
  
  @override
  void drive() => print('Driving an electric car');
} In the main function, we create an instance of ElectricCar and call its drive method. Since the drive method is overridden in the ElectricCar class, it prints "Driving an electric car". In the main function, we create an instance of ElectricCar and call its drive method. In the main function, we create an instance of ElectricCar and call its drive method. main ElectricCar drive Since the drive method is overridden in the ElectricCar class, it prints "Driving an electric car". Since the drive method is overridden in the ElectricCar class, it prints "Driving an electric car". drive ElectricCar This  demonstrates how inheritance and method overriding work in Dart,  allowing for code reuse and the ability to specialize behavior in  sub classes. Understanding these concepts is crucial for building  maintainable and extensible object-oriented Dart applications. 🌟 Stay Connected! 🌟 Hey there, awesome reader! 👋 Want to stay updated with my latest insights,Follow me on social media! 🐦 📸 📘 💻 🌐 🐦 📸 📘 💻 🌐 Sadanand Gadwal Sadanand Gadwal

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Exploring Dart Fundamentals - Part 5: Inheritance and Method Overriding

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Exploring Dart Fundamentals - Part 5: Inheritance and Method Overriding

Too Long; Didn't Read

Sadanand Gadwal

About Author

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