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program testol;
 
{$mode objfpc}
 
uses sysutils,contnrs; 
Type
  TTestObject = Class(TObject)
    FID : Integer;
    Fmsg : String;    Constructor Create (ID : INteger; Msg : String);
    Destructor Destroy; override;
    Procedure Print;
  end;
 Constructor TTestObject.Create (ID : INteger; Msg : String);
 
begin
  FID:=ID;
  FMsg:=Msg;end;
 
procedure TTestObject.Print;
 
begin  Writeln(FID,' (',FMsg,')');
end;
 
Destructor TTEstObject.Destroy;
 begin
  Write('Destroying : ');
  Print;
end;
 Const
  NO = 10;
 
Var
  S : TObjectList;  I : Integer;
 
begin
  S:=TobjectList.Create;
  For I:=1 to NO do    S.add(TTestObject.Create(I,'Item '+intToStr(i)));
  Writeln('Counting objects:');
  For I:=0 to S.Count-1 do
    (S[i] as TTestObject).Print;
  Writeln('Shifting..');  For I:=1 to 5 do
    S.Move(9,0);
  Writeln('Counting objects:');
  For I:=0 to S.Count-1 do
    (S[i] as TTestObject).Print;  Writeln('Deleting objects:');
  For I:=S.Count-1 downto 0 do
    S.Delete(I);
end.