unit StudyMain; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls; type TForm1 = class(TForm) Panel1: TPanel; Memo1: TMemo; Memo2: TMemo; btnDateTest: TButton; Button2: TButton; Button3: TButton; Button4: TButton; procedure btnDateTestClick(Sender: TObject); procedure FormCreate(Sender: TObject); private { Private declarations }..