Berikut adalah contoh penggunaan array di delphi sekaligus penggunaan listbox dan radiobutton.
Buat sebuah form dengan satu edit, satu button, satut listbox dan tiga radiobutton.
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
RadioButton1: TRadioButton;
RadioButton2: TRadioButton;
ListBox1: TListBox;
RadioButton3: TRadioButton;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
nama:array [0..100] of string;
n:integer;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);
begin
radiobutton1.Caption:='input';
radiobutton2.Caption:='tampilkan';
radiobutton3.Caption:='semua';
edit1.Text:='';
radiobutton1.Checked:=true;
button1.Caption:='OK';
n:=0;
end;
procedure TForm1.Button1Click(Sender: TObject);
var i:integer;
begin
if (radiobutton1.Checked=true) and not(edit1.Text='') then begin
listbox1.Items.add(edit1.Text);
n:=n+1;
nama[n]:=edit1.Text;
end;
if radiobutton2.Checked=true then begin
listbox1.Clear;
if (edit1.Text<='9') and (edit1.Text>='0') and not(edit1.Text='') then begin
listbox1.Items.Add(nama[strtoint(edit1.Text)]);
end;
end;
if radiobutton3.Checked=true then begin
listbox1.Clear;
for i:=1 to n do begin
listbox1.Items.Append(nama[i]);
end;
end;
end;
end.
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