Amit Bariar

<%
ProductsByCities pbc= new ProductsByCities();
storesList = pbc.getCityList(); // List contains the cities list taken from Database
//getCityList is Non-static method
%>

above code should run if getCityList() method is public...
but the best way to write this java code in other java class and call it using tag libs

go on to apache website. you will get lot of open source project over there