Output data

[teser3]

I have something that works with data mapping but was wondering if
there was a more efficient way to do this?

Java part:
.....
//database part here...ResultSet rs
....

List myMap = new ArrayList();

while (rs.next())
{
String firstname = rs.getString("firstname");
String lastname = rs.getString("lastname");
String address = rs.getString("address");
myMap.add(firstname + "," + lastname + "," + address);
}

-----

output:
//output comma delimeter data
out.print(myMap.get(0));


Please advise.