FROM LUAS PERSEGI PANJANG

FROM LUAS PERSEGI PANJANG

  







 

















unit materi1;

interface

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;

type

  TForm1 = class(TForm)

    Label1: TLabel;

    Label2: TLabel;

    txtPanjang: TEdit;

    txtLebar: TEdit;

    Label3: TLabel;

    txtLuas: TEdit;

    Button1: TButton;

    procedure Button1Click(Sender: TObject);

  private

    { Private declarations }

  public

    { Public declarations }

  end;

var

  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);

var

  Panjang,Lebar,Luas:integer;

begin

  Panjang:=StrToInt(txtPanjang.Text);

  Lebar:=StrToInt(txtLebar.Text);

  Luas:=Panjang*Lebar;

  txtLuas.Text:=IntToStr(Luas);

end;

end.