52 lines
1.0 KiB
Plaintext
52 lines
1.0 KiB
Plaintext
unit Unit1;
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interface
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uses
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Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
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Dialogs, StdCtrls;
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type
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TForm1 = class(TForm)
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EditInputField: TEdit;
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ButtonRandom: TButton;
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ButtonIncrement: TButton;
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procedure EditInputFieldChange(Sender: TObject);
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procedure ButtonIncrementClick(Sender: TObject);
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procedure ButtonRandomClick(Sender: TObject);
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private
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{ Private declarations }
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public
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{ Public declarations }
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end;
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var
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Form1: TForm1;
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implementation
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{$R *.dfm}
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procedure TForm1.EditInputFieldChange(Sender: TObject);
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begin
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TRY
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StrToInt(EditInputField.Text);
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EXCEPT
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ShowMessage('Error! The Input Value is not numeric!');
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EditInputField.Text := '0';
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END;
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end;
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procedure TForm1.ButtonIncrementClick(Sender: TObject);
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begin
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EditInputField.text := IntToStr(StrToInt(EditInputField.Text) + 1);
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end;
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procedure TForm1.ButtonRandomClick(Sender: TObject);
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begin
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Randomize;
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EditInputField.Text := IntToStr(Random(High(Integer)));
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end;
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end.
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