Store information and only retrieve unique information.
im supposed to retrieve org_id and store it into array list.. and then i want to make sure that only unique org_id are retrieved so that only unique org_id are displayed in the table.
however, when i tried to store the org_id inside arraylist.
ArrayList list = new ArrayList();
list.add(o.getORG_ID());
it says "unchecked or unsafe operations"
and i dont know how to compare whether the org_id is unique or not.
can anyone help me on this =)
thanks!
Message was edited by:
KarenCW
im sorry..im not familiar with neither HashSet nor Tree..
care to give direction?
oh,btw, im using netbeans. so im not sure whether the code can be used. =)
appreciate ur code.
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