Super simple but hard question for a Dart beginner

Question

I am trying to learn Dart language. Following code seems very straight forward but does not work. I know it may be a foolish question for an expert but for me hard to understand why not ?

class Car{

  carFun(){
  
    print("Test");

  }
  
}

main(){

  Car.carFun();

}

question from:https://stackoverflow.com/questions/65909810/super-simple-but-hard-question-for-a-dart-beginner

Answer 1

Already answered but I'll give more context.

You need to mark your method as static:

static carFun(){ ...

This makes the method available as a 'Class Method'; right now, as you have defined it, it is an 'Object Method'. This means that you need to make an object out of the class Car to be able to use it, which would be something like this:

var myCar = new Car();
myCar.carFun();

This way you instantiated an object and used a defined method for it. Marking it as static would make this approach not work. This is one of the many differences between a Class and an Object.