Re: How to not use casting to invoke the methods of a List of objects
On 20.07.2012 17:45, Joerg Meier wrote:
On Fri, 20 Jul 2012 06:58:49 -0700 (PDT), clusardi2k@aol.com wrote:
The below start of replacement code fails because it skips through the list. There wasn't a good reason for me to finish the code! The loop can't even iterate the required number of loops.
Iterator <Route> it = objList.iterator();
int size = objList.size();
for (int i = 0;i < size; i++)
{
it.next();
}
That is not really how you use iterators. Proper way:
Iterator <Route> it = objList.iterator();
while (it.hasNext()) {
it.next();
}
In 2012 I'd rather say the proper way for a simple iteration (i.e.
without removing elements or such) is
for (final Route r : objList) {
// camel case and accessor added:
System.out.println(r.getLocationId());
}
Assuming objList is assignment compatible to Iterable<Route>. We
haven't seen the declaration in the original posting though so we can
only speculate.
I do have to agree that the original question was quite a bit dark.
Cheers
robert
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