can anyone help me please,

i have to create classes (which i understand) and these have to be stored as anonymous objects in an array. my problem is that i do not know how to package different defined class objects together as identical array objects (if that makes sense).

more specifically my array has to hold 10 objects and these objects can be trees, sheds etc (for a garden design), i am totally lost as im a new programmer so any help would be greatly appreciated.

cheers.

p.s. does anyone know of any sites which may be of help with either explainations or examples of related coding.