Re: Blocks for scope control
On 1/15/2012 10:50 AM, Arved Sandstrom wrote:
for a general discussion.
I'm talking specifically about the block by itself: a pair of braces by
themselves, enclosing some code in a method. On occasion I do run across
situations where a judicious use of such a block inside a method, to
restrict variable visibility, is handy.
I almost never see anyone else using these things this way. A block in a
method always seems to be associated with a control construct or
exception handling. As any number of references point out, you wouldn't
expect to see many usages of local blocks, mainly because 99 times out
of 100 that situation is probably handled best by a new method. But in
my years of looking at Java it occurs to me that I barely see any use of
this at all...even where it wouldn't be a bad idea.
I can see couple of reasons why it is not used much:
1) The average Java developer is not aware of the possibility.
2) If a method is so complex that this trick has a significant effect
for avoiding mistakes, then the method should be broken up in
multiple smaller methods.
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