MEMBUAT KALKULATOR DENGAN DELPHI

unit Kakulator;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls, jpeg, ComCtrls, XPMAN, MATH;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    Button7: TButton;
    Button8: TButton;
    Button9: TButton;
    Button10: TButton;
    Button11: TButton;
    Button12: TButton;
    Button13: TButton;
    Button15: TButton;
    Button18: TButton;
    Button23: TButton;
    Button24: TButton;
    Button25: TButton;
    Button26: TButton;
    Button27: TButton;
    Button28: TButton;
    Button29: TButton;
    hasil: TPanel;
    StatusBar1: TStatusBar;
    Timer1: TTimer;
    procedure Button1Click(Sender: TObject);
    procedure Button10Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
    procedure Button8Click(Sender: TObject);
    procedure Button9Click(Sender: TObject);
    procedure Button11Click(Sender: TObject);
    procedure Button25Click(Sender: TObject);
    procedure Button24Click(Sender: TObject);
    procedure Button27Click(Sender: TObject);
    procedure Button18Click(Sender: TObject);
    procedure Button15Click(Sender: TObject);
    procedure Button29Click(Sender: TObject);
    procedure Button23Click(Sender: TObject);
    procedure Button12Click(Sender: TObject);
    procedure Button13Click(Sender: TObject);
    procedure Button28Click(Sender: TObject);
    procedure Button26Click(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);


  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
 MemAngka,MemLogic,MemOperator,MemSimpan:string;
implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='1' else
Hasil.Caption:='1';
 end
else
 Hasil.Caption:=Hasil.Caption+'1';
end;

procedure TForm1.Button10Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 if MemOperator<>'' then Hasil.Caption:='0' else
 if Hasil.Caption='0' then Hasil.Caption:='0' else
   begin
   Hasil.Caption:=Hasil.Caption+'0';
   MemLogic:='1';
   end;
 end
else
Hasil.Caption:=Hasil.Caption+'0';
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='2';
 if MemOperator<>'' then Hasil.Caption:='2' else
 Hasil.Caption:='2';
 end
else
 Hasil.Caption:=Hasil.Caption+'2';
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>' ' then Hasil.Caption:='3' else
 Hasil.Caption:='3';
 end
else
 Hasil.Caption:=Hasil.Caption+'3';
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='4' else
 Hasil.Caption:='4';
 end
else
 Hasil.Caption:=Hasil.Caption+'4';
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='5' else
 Hasil.Caption:='5';
 end
else
 Hasil.Caption:=Hasil.Caption+'5';
end;

procedure TForm1.Button6Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='6' else
 Hasil.Caption:='6';
 end
else
 Hasil.Caption:=Hasil.Caption+'6';
end;

procedure TForm1.Button7Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='7' else
 Hasil.Caption:='7';
 end
else
 Hasil.Caption:=Hasil.Caption+'7';
end;

procedure TForm1.Button8Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='8' else
 Hasil.Caption:='8';
 end
else
 Hasil.Caption:=Hasil.Caption+'8';
end;

procedure TForm1.Button9Click(Sender: TObject);
begin
if hasil.Caption='0' then
hasil.Caption:='';
if Hasil.Caption<>' ' then
if MemLogic='0' then
 begin
 MemLogic:='1';
 if MemOperator<>'' then Hasil.Caption:='9' else
 Hasil.Caption:='9';
 end
else
 Hasil.Caption:=Hasil.Caption+'9';
end;

procedure TForm1.Button11Click(Sender: TObject);
var sudut : real;
begin
if Hasil.Caption<>' ' then
 begin
 sudut:=strtofloat(Hasil.Caption);
 sudut:=sudut*pi/180;
 Hasil.Caption := floattostr(sin(sudut));
 end;
end;


procedure TForm1.Button25Click(Sender: TObject);
begin
MemOperator:='';
if (hasil.Caption<>'') then
  if MemLogic='0' then MemOperator:='-' else
  if (MemOperator='')  then
    begin
    MemOperator:='-';
    MemLogic:='0';
    MemAngka:=hasil.Caption;
    end
  else
    begin
    if MemOperator='+' then hasil.Caption:=floattostr(strtofloat(MemAngka)+strtofloat(hasil.Caption));
    if MemOperator='-' then hasil.Caption:=floattostr(strtofloat(MemAngka)-strtofloat(hasil.Caption));
    if MemOperator='x' then hasil.Caption:=floattostr(strtofloat(MemAngka)*strtofloat(hasil.Caption));
    if MemOperator='/' then hasil.Caption:=floattostr(strtofloat(MemAngka)/strtofloat(hasil.Caption));
  //  if MemOperator='mod' then hasil.Caption:=inttostr(strtoint(MemAngka) mod strtoint(hasil.Caption));
    if MemOperator='div' then hasil.Caption:=inttostr(strtoint(MemAngka)div strtoint(hasil.Caption));
    if MemOperator='^' then hasil.Caption:=floattostr(exp(strtofloat(hasil.Caption)*ln(strtofloat(MemAngka))));
    MemAngka:=hasil.Caption;
    MemOperator:='-';
    MemLogic:='0';
    end;
end;

procedure TForm1.Button24Click(Sender: TObject);
begin
if MemOperator='+' then hasil.Caption:=floattostr(strtofloat(MemAngka)+strtofloat(hasil.Caption));
if MemOperator='-' then hasil.Caption:=floattostr(strtofloat(MemAngka)-strtofloat(hasil.Caption));
if MemOperator='x' then hasil.Caption:=floattostr(strtofloat(MemAngka)*strtofloat(hasil.Caption));
if MemOperator='/' then hasil.Caption:=floattostr(strtofloat(MemAngka)/strtofloat(hasil.Caption));
MemAngka:=hasil.Caption;
MemLogic:='0';
end;


procedure TForm1.Button27Click(Sender: TObject);
begin
hasil.Caption:='0';
MemLogic:='';
MemAngka:='';
MemOperator:='';
end;
procedure TForm1.Button18Click(Sender: TObject);
begin
if hasil.Caption<>'' then
 hasil.Caption:=hasil.Caption + ',';
end;


procedure TForm1.Button15Click(Sender: TObject);
begin
MemOperator:='';
if (hasil.Caption<>'') then
  if MemLogic='0' then MemOperator:='+' else
  if (MemOperator='')  then
    begin
    MemOperator:='+';
    MemLogic:='0';
    MemAngka:=hasil.Caption;
    end
  else
    begin
    if MemOperator='+' then hasil.Caption:=floattostr(strtofloat(MemAngka)+strtofloat(hasil.Caption));
    if MemOperator='-' then hasil.Caption:=floattostr(strtofloat(MemAngka)-strtofloat(hasil.Caption));
    if MemOperator='x' then hasil.Caption:=floattostr(strtofloat(MemAngka)*strtofloat(hasil.Caption));
    if MemOperator='/' then hasil.Caption:=floattostr(strtofloat(MemAngka)/strtofloat(hasil.Caption));
 //   if MemOperator='mod' then hasil.Caption:=inttostr(strtoint(MemAngka) mod strtoint(hasil.Caption));
    if MemOperator='div' then hasil.Caption:=inttostr(strtoint(MemAngka)div strtoint(hasil.Caption));
    if MemOperator='^' then hasil.Caption:=floattostr(exp(strtofloat(hasil.Caption)*ln(strtofloat(MemAngka))));
    MemAngka:=hasil.Caption;
    MemOperator:='+';
    MemLogic:='0';
    end;
end;



procedure TForm1.Button29Click(Sender: TObject);
begin
MemOperator:='';
if (hasil.Caption<>'') then
  if MemLogic='0' then MemOperator:='x' else
  if (MemOperator='')  then
    begin
    MemOperator:='x';
    MemLogic:='0';
    MemAngka:=hasil.Caption;
    end
  else
    begin
    if MemOperator='+' then hasil.Caption:=floattostr(strtofloat(MemAngka)+strtofloat(hasil.Caption));
    if MemOperator='-' then hasil.Caption:=floattostr(strtofloat(MemAngka)-strtofloat(hasil.Caption));
    if MemOperator='x' then hasil.Caption:=floattostr(strtofloat(MemAngka)*strtofloat(hasil.Caption));
    if MemOperator='/' then hasil.Caption:=floattostr(strtofloat(MemAngka)/strtofloat(hasil.Caption));
//    if MemOperator='mod' then hasil.Caption:=inttostr(strtoint(MemAngka) mod strtoint(hasil.Caption));
    if MemOperator='div' then hasil.Caption:=inttostr(strtoint(MemAngka)div strtoint(hasil.Caption));
    if MemOperator='^' then hasil.Caption:=floattostr(exp(strtofloat(hasil.Caption)*ln(strtofloat(MemAngka))));
    MemAngka:=hasil.Caption;
    MemOperator:='x';
    MemLogic:='0';
    end;
end;


procedure TForm1.Button23Click(Sender: TObject);
begin
MemOperator:='';
if (hasil.Caption<>'') then
  if MemLogic='0' then MemOperator:='/' else
  if (MemOperator='')  then
    begin
    MemOperator:='/';
    MemLogic:='0';
    MemAngka:=hasil.Caption;
    end
  else
    begin
    if MemOperator='+' then hasil.Caption:=floattostr(strtofloat(MemAngka)+strtofloat(hasil.Caption));
    if MemOperator='-' then hasil.Caption:=floattostr(strtofloat(MemAngka)-strtofloat(hasil.Caption));
    if MemOperator='x' then hasil.Caption:=floattostr(strtofloat(MemAngka)*strtofloat(hasil.Caption));
    if MemOperator='/' then hasil.Caption:=floattostr(strtofloat(MemAngka)/strtofloat(hasil.Caption));
//    if MemOperator='mod' then hasil.Caption:=inttostr(strtoint(MemAngka) mod strtoint(hasil.Caption));
    if MemOperator='div' then hasil.Caption:=inttostr(strtoint(MemAngka)div strtoint(hasil.Caption));
    if MemOperator='^' then hasil.Caption:=floattostr(exp(strtofloat(hasil.Caption)*ln(strtofloat(MemAngka))));
    MemAngka:=hasil.Caption;
    MemOperator:='/';
    MemLogic:='0';
    end;
end;


procedure TForm1.Button12Click(Sender: TObject);
var sudut:real;
begin
if hasil.Caption<>'' then
 begin
 sudut:=strtofloat(hasil.Caption);
 sudut:=sudut*pi/180;
 hasil.Caption := floattostr(cos(sudut));
 MemLogic :='0';
 end;
end;


procedure TForm1.Button13Click(Sender: TObject);
var sudut,a,b:real;
begin
if hasil.Caption<>'' then
 begin
 sudut:=strtofloat(hasil.Caption);
 sudut:=sudut*pi/180;
 a:=sin(sudut);
 b:=cos(sudut);
 sudut:=a/b;
 hasil.Caption := floattostr((sudut));
 MemLogic :='0';
 end;
end;

procedure TForm1.Button28Click(Sender: TObject);
var angka:real;
begin
angka:=StrToFloat(hasil.Caption);
if (angka>0) then
angka:=(-angka)
else
angka:=angka+(-angka)+(-angka);
hasil.Caption:=FloatToStr(angka);
end;

procedure TForm1.Button26Click(Sender: TObject);
var angka:real;
begin
angka:=StrToFloat(hasil.Caption);
angka:=ln(10)/ln(angka);
hasil.Caption:=FloatToStr(angka);
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  StatusBar1.Panels[2].Text:= TimeToStr(time);
end;

end.