Re: HSSF POI performance improvement with Java helper routine bugged

Note that in this case the OP is using STATIC on the method, not a
variable as far as I know.

Which simply means that the method my be called without an instance of
the class. Usually used for utility type methods that operate solely
on the passed in parms. Examples: most of the methods in the Math and
also java.util.Random classes.

The thread safety of a method is not affected by the use of STATIC.

HTH,
Charles

On Wed, Mar 31, 2010 at 12:29 PM, Joe Sam Shirah <joe_sam@xxxxxxxxxxxxx> wrote:

   Second, using things when "I'm not really clear on what that means" is
not a good idea.  Static means a class variable; i.e. there is only one for
all instances of the class.  You don't even need to construct an instance to
use it.  Sounds cool, but you've just thrown away any chance of
multi-threading using that variable.  If it's a constant, great (probably,)
but if it's really a variable for an instance, or intended to work as a
local variable, you can run across a class of bugs that is very difficult to
resolve.