The toString() method

A great common example of overriding parent behavior is the toString() method. The objective of this method is to return a String representation of the object:

class Student extends Person {
  // ... fullName(from Person class) and other fields
  @override
  String toString() => "$fullName, also known as $nickName";
}

main() {
  Student student = new Student("Clark", "Kent", "Kal-El");

  print("This is a student: $student"); 
  // prints: This is a student: Clark Kent, also known as Kal-El
  // will also call the toString() of student implicitly
}

As you can see, this makes the code cleaner, and we provide a good textual representation of the object that can aid in understanding logs, text formatting, and more.