unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
    btn1: TButton;
    procedure btn1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
    procedure test(str: string; s: string; b : Boolean=false); overload;
    procedure test(str: string; a : array of Integer; b : Boolean=false); overload;
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.test(str: string; s: string; b : Boolean=false);
begin
     showMessage(s);
end;

procedure TForm1.test(str: string; a : array of Integer; b : Boolean=false);
begin
     showMessage(inttostr(a[1]));
end;


procedure TForm1.btn1Click(Sender: TObject);
begin
    test('asd', [1,2,3,4] {,false});
end;

end.