RE: Java string length

Nah, not an idiot, just human like the rest of us... :-)


Try our New Country Benedicts -- Breakfast with a Bob Evans twist!


rpg400-l-bounces@xxxxxxxxxxxx wrote on 08/28/2006 10:28:03 AM:

Ah... I'm an idiot.... that's what wrong with it.
My example should have been this:

   myVar = '   Bob Cozzi   ';
   len  = %Len(%trim(myVar));
   callp  someCorJavaAPI(myVar : len);


I guess I had a learning experience. <tic>


-Bob Cozzi
www.iSeriesTV.com
Ask your Manager to watch iSeriesTV.com


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx

[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On

Behalf Of Glenn Gundermann
Sent: Monday, August 28, 2006 8:47 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: Java string length

Bob,

Could you please spell it out for us less experienced programmers what is
wrong with the last section of code that will bring on the "learning
experience".

Tks,

Glenn

Remember, %TRIM() is NOT %trimR().
I know a lot (most?) RPG IV programmers use %trim() because of the "I

know

it
works" mentality. But in the rare case when a variable contains leading
blanks,
%trim() will return a completely different value than %trimR().

I strongly agree with the person who implemented %trim(), %trimR(), and
%trimL()
in RPG IV that as a developer, you should use the Built-in function

that

applies
and not generically default back to %trim(). If anything, default to
always
using %trimR() and then use %trim() on an exception basis, were
applicable.

  myVar = '   Bob Cozzi   ';
  len  = %Len(%trim(myVar));
  lenR = %Len(%trimR(myVar));

After the above is performed, LEN equals 9 and LENR equals 12.
So if you code this:
  myVar = '   Bob Cozzi   ';
  len  = %Len(%trim(myVar));
  myWorkVar = %trim(myVar);
  callp  someCorJavaAPI(myWorkVar : len);

You're going to have a learning experience.


-Bob Cozzi
www.iSeriesTV.com
Ask your Manager to watch iSeriesTV.com

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