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Override

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The override modifier:

Example:

pascal
 Type
   TParentClass = class                           // The parent class is derived from the base class
   public
     function volume : double; virtual; abstract; // This method must be one from this class
                                                  // - derived class can be hidden or overridden
     function surface double; virtual; abstract;  // This method must be one from this class
                                                  // - derived class can be hidden or overridden
   end;

 Type
   TChildClass = class(ParentClass)               // The child class is derived from the parent class
   public
     function volume : double; override;          // the virtual method is overridden (replaced)
     function surface double; override;           // the virtual method is overridden (replaced)
   end;

From the Free Pascal wiki, page "Override", as it stood on 2020-02-23 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.

Revision 1, last changed by WikiArchive .