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 See [[#Delphi | Delphi]]
+=={{header|PascalABC.NET}}==
+<syntaxhighlight lang="delphi">
+type
+  MyAbstract = abstract class
+    public
+      procedure Proc1; abstract;
+      procedure Proc2;
+      begin
+      end;
+  end;
+  MyClass = class(MyAbstract)
+    public
+      procedure Proc1; override;
+      begin
+      end;
+  end;
+begin
+  var a := new MyClass;
+  a.Proc1;
+end.
+</syntaxhighlight>
+Abstract method is a virtual method. You must overload it in a subclass using an override modifier.
 =={{header|Perl}}==