Hi I think I use the list as usual:
Snippets:
Action:
Ejercicio is the parent class (abstract) and child classes are Estiramientos, Pesas, Progresivos, Serie, CarreraContinua, CambiosRitmo.
List<Ejercicio> listaEjercicios is the parent's objects list containing all child objects. I have split in several child's lists just as a matter of retrieving listaEjercicios sorted by the child's type.
JSP:
Any advice?