[hardwired]

A fascinating question because there are so many possibilities.
Some suggestions:
A List (LinkedList, ArrayList, etc) can take any kind of object including another List, an array (or multi-dimensional array) or a custom class object.
A "Data Store" class can have any thing you want in it along with methods such as write or draw.
For instance:

Code:

class PseudoStore {
    String name;
    int id;

    public PseudoStore(String name, int id) {
        this.name = name;
        this.id = id;
    }

    public String toString() {
        return "PseudoStore[name:" + name + ", id:" + id + "]";
    }
}

Then you could do

Code:

// For generics (j2se 1.5+)
List<PseudoStore> list = new ArrayList<PseudoStore>();
// or, for non-generics
List list = new ArrayList();
list.add(new PseudoStore("John Hancock", 22));
...
String name = ((PseudoStore)list.get(0)).name;
...
for(int j = 0; j < list.size(); j++) {
    PseudoStore store = (PseudoStore)list.get(j);
    System.out.println("store("+j+") = " + store);
}