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Order of import statements

Fisher Daniel
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Joined: Sep 14, 2001
Posts: 582
Hi all,
I use Eclise to build the Java applications.
And using that IDE, we can organize the order of import statments.
Are there some general conventions how we should order that?

I have read Java Code Convention, but there is section that define about that...

Correct me if i am wrong..

daniel
Mike Gershman
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Joined: Mar 13, 2004
Posts: 1272
It is clear that all import statements must follow the package statement, if any, and precede the rest of the compilation unit. Other than that, I can't think of a case where the order of import statements within a compilation unit has meaning.

What did you have in mind?


Mike Gershman
SCJP 1.4, SCWCD in process
Stan James
(instanceof Sidekick)
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Joined: Jan 29, 2003
Posts: 8791
There are style preferences but no technical reasons that I know of. The Eclpise IDE has a nice "source/organize imports" feature on the right mouse click. It separates JDK imports and other imports by a blank line, sorts both groups, removes any that are not used and changes * to a list of classes. I figure the Eclipse guys gave it more thought than I care to and just use the default style.


A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Order of import statements