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Prime Number Checker in Delphi

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Submitted on: 9/11/2016 3:28:15 AM
By: Jake R. Pomperada  
Level: Beginner
User Rating: Unrated
Compatibility: Delphi 7
Views: 1357
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     A program that I wrote using Delphi to accept a number from the user and then our program will check and determine if the given number is a Prime Number or Not. Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com. My mobile number here in the Philippines is 09173084360.

 
code:
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!**************************************
! Name: Prime Number Checker in Delphi
! Description:A program that I wrote using Delphi to accept a number from the user and then our program will check and determine if the given number is a Prime Number or Not.
Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
 
My mobile number here in the Philippines is 09173084360.
! By: Jake R. Pomperada
!**************************************

unit prime;
interface
uses
 Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
 StdCtrls;
type
 TForm1 = class(TForm)
Label1: TLabel;
Label2: TLabel;
Edit1: TEdit;
Button1: TButton;
Label3: TLabel;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
 private
{ Private declarations }
 public
{ Public declarations }
 end;
var
 Form1: TForm1;
implementation
{$R *.DFM}
function ISPrime(const vlNumber: Integer): Boolean;
var
X: Integer;
vlPrime: Boolean;
begin
X := 2;
vlPrime := True;
While (X < vlNumber) and vlPrime do begin
vlPrime := ((vlNumber mod X) <> 0);
Inc(X);
end;
ISPrime := vlPrime;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
 if edit1.text ='' then
 begin
 ShowMessage('Emtpy not allow');
Edit1.text :='';
Label3.Caption := '';
Edit1.SetFocus;
end
else ifISPrime( strtoint(Edit1.Text)) then
 Begin
Label3.Caption:= 'The number ' + Edit1.Text
 + ' is a Prime Number'+'.'
 end
 else
 
Label3.Caption:= 'The number ' + Edit1.Text
 + ' is Not a Prime Number'+'.'
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
 Edit1.text :='';
 Label3.Caption := '';
 Edit1.SetFocus;
end;
end.


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