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I suppose you could. Never thought of that. I've actually made a LinkedList that holds a class that holds a LinkedList of another class that holds a LinkedList of yet another class.

Would one...

public interface My2DCollection<T>
{

public T get(int row, int column);
public int Size();
public T front();
public T back();
public void add(T data, int row, int column);
public void...