Flächenrechner für die oberfläche eines würfels

unit Oberflaeche_Wuerfel; interface

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

type

TForm1 = class(TForm)
Label1: TLabel;

laenge_Edit1: TEdit;
breite_Edit2: TEdit;

Oberflaeche_Edit1: TEdit;
Button1: TButton;

Button2: TButton;
Label2: TLabel;

Label3: TLabel;
Label4: TLabel;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);

private
{ Private-Deklarationen }

public
{ Public-Deklarationen }

end;


var
Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var a,laenge,breite : integer;
begin
laenge := StrToInt (laenge_edit1.Text);
breite := StrToInt (breite_edit2.Text);

a:= laenge*breite*6;
Oberflaeche_Edit1.text:= IntToStr(a);

end;

procedure TForm1.Button2Click(Sender: TObject);
begin

close;

end; end.