How do you define a class in Dart?

In Dart, a class is basically a blueprint for creating objects — it defines the properties and behaviors that those objects will have. I usually define a class using the class keyword followed by the class name, and inside it, I include fields, constructors, and methods.

For example, let’s say I’m creating a Car class:

class Car {
  String brand;
  int year;

  Car(this.brand, this.year);

  void displayInfo() {
    print('Brand: $brand, Year: $year');
  }
}

Here, brand and year are instance variables, and I’ve defined a constructor that initializes them. The displayInfo() method shows how we can add behavior to the class.