The [[APIFest08:Task3|task3]] of [[APIFest08]] is here to tease you more, dear participants. Btw. great work on the previous tasks! It is really hard for me to come up with a task that will be ''unimplementable'' for you. I guess you all defend [[BackwardCompatibility]] of your solutions pretty well.

Let see what will happen during the [[APIFest08:Task3|round3]]. I have prepared the [http://source.apidesign.org/hg/apifest08/rev/ba28def25913 Task3Test.java] for you. Please enhance your API to allow your API users to write ''online convertor'' that updates its exchange rates all the time. Please find the details of your quest inside of the [http://source.apidesign.org/hg/apifest08/rev/ba28def25913 Task3Test.java] file.

Locate your solution among existing [http://source.apidesign.org/hg/apifest08/file/tip/task3/ task3] directory, copy the [http://source.apidesign.org/hg/apifest08/rev/ba28def25913 Task3Test.java] file along your '''Task1Test.java''' and '''Task2Test.java'''. Enhance your API, show its usage in the '''Task3Test.java'''.

After you are done, please generate a diff. The best way is to use [[Mercurial]]:
<source lang="bash">
# create the repository
hg clone http://source.apidesign.org/hg/apifest08/
# or update it
hg pull; hg update
# copy the task 2 file
hg copy currency/test/org/apidesign/apifest08/test/Task2Test.java task2/solutionXY/test/org/apidesign/apifest08/test/Task2Test.java
# then do your modifications
# ...
# and finally produce a diff
hg diff
</source>
you can obtain the diff in other ways, potentially you can send us to [mailto:apifest08@apidesign.org our mailing list] the whole ZIP file, but diffs are preferred.

Please submit your solutions by morning of Fri, Oct 10, 2008, so we can process your submission before weekend. Good luck!