+1
I couldn't agree with Gary more. The "final" keyword is an essential element
to bug free programs for all the reasons he provides.
Jake
On Thu, 10 Jan 2013 16:59:08 -0500
Gary Gregory <[email protected]> wrote:
Hi,
On Thu, Jan 10, 2013 at 4:39 PM, Ralph Goers
<[email protected]>wrote:
I guess I should have replied.
My attitude is "I don't care but don't expect me to always do it".
Sure, to each his own :)
Mainly, this is because I have no idea what, if any, benefit there is to
declaring a variable that is local to a method as final. They don't affect
thread safety and, as far as I am aware, don't improve the performance of
the code. If you can find something that shows significant benefit then
maybe I'll get in the habit of doing it too.
What I like about final on locals is that it lets me define and guard
"local constants" that I cannot modify because the compiler will complain.
This lets me put in code my intention that a local var should not be
modified.
It helps avoid coding mistakes.
Putting final on params formalizes the convention that parms should not be
overwritten, if you like that convention that is. IMO, it makes debugging
easier and coding easier, you know that when you access a final param
value, it has not been changed.
As far as class variables, those I have a much stronger opinion about.
They should be declared final whenever possible.
Same for instance variable when possible if immutable objects are desired
for thread-safety.
Cheers,
Gary
Ralph
On Jan 10, 2013, at 12:15 PM, Gary Gregory wrote:
Since there is no negative feedback, I'll add final keywords.
Gary
On Tue, Oct 9, 2012 at 9:08 AM, Gary Gregory <[email protected]>wrote:
Hi All:
The final keyword in trunk: sometimes it is used, sometimes not. I
propose we use it all over consistently.
Gary
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