Urgent in my project work

Question

I have one urgent requirement in our project
we have of list of requisitions in the page listing ;we will have check boxes to that
say if i check 5 requisitions
we will update the status(statuses like pending,processing,rejecting,invalidate)
when user select reject status we have to send email notification to those users who created those requisitions;when i click update button
I will get userid and requistionid;
if we put in hashtable
userid will come in duplicated but requistionid is unique.
say data wil come like this;
ht.put("Vikram",1313);
ht.put("Shekar",1513);
ht.put("Shekar",4213);
ht.put("Vikram",4613);
ht.put("Vikram",4583);
ht.put("Ranga",4183);
dont tell me that compare with userid.equals("Vikram");
i cant compare like that because i dont know which user can come from database
how to do this with Hashtable;IS ANY OTHER WAY.
i want to send one email to user vikram with requistionids 1313,4613,4583
bye
chaitanya

Answer 1

I'm not quite sure what you are asking here. How to retrieve email address? How to distinguish users?
I can see one problem however Unless you have a specialised Hashtable, you are only allowed to map one key to one value. Subsequent puts will override the old value. Hence, if you call ht.put("Vikram"...) with three different values, only the last one will be kept. You need a unique key to use a hashtable properly.
What you can do is store each entry in the hashtable as a list. That will then give you a list of ids to notify for each user.
ie
"Vikram" = [1313, 4613, 4583]
"Ranga" = [4183]
Does that help at all?