To which structures and classes does the base object in a programming language belong?

In Flutter (and Dart language), the basic object is the Object class, from which all other classes and structures implicitly inherit. It is the root of the type hierarchy.

Features of the basic Object:

• All classes in Dart inherit from Object by default.
• Object defines basic methods such as toString(), hashCode, == (equality operator).
• This allows working with any objects through Object references.

Example:

void printObject(Object obj) {
  print(obj.toString());
}

class MyClass {}

void main() {
  var myObj = MyClass();
  printObject(myObj); // Any object can be passed
}

Thus, the base object in Dart is the Object class, which is the foundation for all structures and classes in Flutter.