[Swoop] Java question
bparsia at isr.umd.edu
Sun Oct 24 22:37:47 EDT 2004
Ok, I hate java.
I just tweaked SwoopFrame to trim() the uri so that leading or trailing
blanks don't cause the system to barf. essentially:
String uri = (String)
uri = uri.trim();
if ((uri==null) || uri.equals("")) return;
But I got a bit confused by the first disjunct. How could the uri be a
null? If it *could* be a null, will my uri.trim() barf in some case?
Are nulls legal in any type of variable? with getSelectedItem() every
return a null?
It seems either I can eliminate the first disjunct (which seemed to be
guarding the second, actually) or I should write a couple of (or
Given that the disjunct exists, I figured that I should take that as a
warning that there could be a null, and rearranged things. But I would
like to know if there really could be a null :)
Minutae are us.
While I'm at it, could I have pointer to the code that intercepts a
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