Hi Anna,
Only some of the assignments have lock cookies - some people don't have them in their requirements. If you look at the question "
How may assignments are there? (What is an NX assignment?)" in the JavaRanch
Sun Certified Java Developer Faq, you will see
some of the known signatures for the unlock method for the UrlyBird assignment.
If you didn't have a requirement for cookies, and if you were building
thin clients (three tier) (
) then you might feel that you only need a simple Vector.
But on that topic, those using Vector's may be interested in reading
Peter den Haan's comments on why Vector and Hashtable should not be used.
Regards, Andrew
[ February 20, 2004: Message edited by: Andrew Monkhouse ]