Help needed, easy question for experts!

I have this program so far - i need to return an error message if the file entered doesnt exist....

program Project1;

{$APPTYPE CONSOLE}

uses
  SysUtils;

var Input      : text;
      I          : integer;
      Lineoftext : string;
      S : string;

  Begin

  Readln (S);

  Reset(input,S);
  for I:=1 to 10 do begin
  Readln (Input,Lineoftext); {Reading a Lineoftext from input file}
  writeln (Lineoftext);
  end;
  Closefile (Input);
  readln;
  end.


Thanks :)

jarhysAsked:
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ginsonicCommented:
Just use FileExists function as:

if not FileExists( S )  then begin
  ShowMessage( 'The file don't exist!' );
  Exit;
end;
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gmayoCommented:
if FileExists(LineOfText) then begin
   ...file exists...
   ExitCode := 0;
end else begin
   ... file does not exist...
   ExitCode := 1; // or whatever
end;

It's in the SysUtils unit which you already include.

Geoff M.
0
nestoruaCommented:
HI,
You also can use "try..except..end" to catch the error.
Sincerely,
Nestorua.
0
DeerBearCommented:
Hi,

Eventually you can also use FileStream, which would also allow for more
flexybility in your data processing.

HTH,

Andrew
0
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