Java Swing

[Anonymous]

Dear friends,
We are developing an application software and facing the problem like this, Suppose I have name
textfield ,now i want that as soon as I enter the data (even a single character) it should open a help file
containing several name according to that data(character) that is stored in database. now when we select the
required name the corresponding data should be retrieved from the data base.
Please solve my query with one example and mail me as soon as possible.
Thanks
With regards
Sanjeet