Re: Beginnerquestion about if (personName==null || personName.equals(""))
Re: Beginnerquestion about if (personName==null || personName.equals(""))
- Subject: Re: Beginnerquestion about if (personName==null || personName.equals(""))
- From: James Cicenia <email@hidden>
- Date: Sat, 8 Sep 2007 07:24:19 -0500
Just saying...
But nulls are truly a PITA for me as at least 80% of the bugs I
write ;-)
have to do with missing a null check.
You would just think in 2007 myString.equals("something") wouldn't
throw
a null pointer and just return false.
I know, I know... "something".equals(myString) doesn't. Yet my fingers
just seem to have a hard time typing it in that way.
c'est la java.
james
On Sep 7, 2007, at 4:27 PM, Cornelius Jaeger wrote:
More precisely
def z = null
z?.doIt()
does not throw a nullpointer, just returns null.
don't know if this is what you got for objective-c but it's still
pretty nice.
regards
cornelius
On 07.09.2007, at 22:57, Cornelius Jaeger wrote:
Or use WOGroovy and do it the groovy way:
Groovy has a safe dereference operator ?.
http://groovy.codehaus.org/Null+Object+Pattern
many regards
Cornelius
On 07.09.2007, at 22:00, Kieran Kelleher wrote:
And if you want to save yourself the PITA, just throw in apache
commons lang jar into your own foundation framework and use the
many useful standardized utilities that are in there:
http://commons.apache.org/lang/
For example check out StringUtilis.isBlank(...) and
StringUtils.isEmpty(...) at
http://commons.apache.org/lang/api-release/index.html
regards, Kieran
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40visualfood.ch
This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40jimijon.com
This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden