Need help --Generating tree

Question

Hi all,
I have a Vector of length 4 in which there are two elements which comes exactly in the order below:
A B
1) Name ---------------------------- John
2) Contact -------------------------Country
3) Name-----------------------------David
4) Contact---------------------------State
Now I have to create a tree with nodes containing text of column "A" which should be distinct and these two nodes contains elements of Column "B" respectively...
like,
- Name -----John
|_ _______David
- Contact----Country
|________State
Can any one tell me how to do it and show me sample code if possible
Thank You

Answer 1

I assumed name and contact were related. Two lists would make sense too (as long as you don't need to match name to a contact). Or (just to belabor the point), why not use a Map that contains Lists for values?
Map map = new HashMap();
map.put("Name", new ArrayList("John", "David"));
map.put("Contact", new ArrayList("Country", "State"));
Again, none of this really addresses the real question - but we're still missing enough information to provide any feedback.