Is it possible to prevent classes from inheriting from a specific class in a programming language?

In Swift, you can prevent inheritance from a class by declaring it as final. Such a class cannot be used as a base for other classes.

Example:

final class MyClass {
    // class code
}

// Attempting to inherit will cause a compile-time error
// class SubClass: MyClass {} // Error

In Objective-C, there is no direct equivalent of final, but you can use various patterns or warnings to restrict inheritance; however, this is not a built-in language feature.