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Prevent Derivation (Delphi and Perl Cross Reference Guide)

By Mike Prestwood

Delphi versus Perl: A side by side comparison between Delphi and Perl.

 
OOP Details
 

More object oriented (OO) stuff.

Prevent Derivation

[Other Languages] 

Languages Focus

How do you prevent another class from inheriting and/or prevent a class from overriding a member.

Delphi:  "Sealed class" sealed, final

With Delphi, use the sealed keyword to prevent a class from being inherited from and use the final keyword to prevent a method from being overridden.

Syntax Example:
type
  Robot = class sealed(TObject)
public
  procedure Speak(pSentence: String); virtual; final;
end;
[Not specified yet. Coming...]












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