I have to show data in Jsp the following way using logic::iterate
Category 1 SubCategory 1 rpt1-name rpt2-name
SubCategory 2 rpt1-name rpt2-name
Category 2 ......
It is possible that subcategory could be blank in that scenario only have to show reports below Category these are all Strings. How do I use datastructure like HashMap and logic::iterate to acheive this