Hi all! It seems this is a good forum to post my question. It's not
difficult and I don't ask for code as I'd like to play about with a
problem for some time myself. However, perhaps you guys could help me
with answering three general questions.

At the moment I am having to create a gird, or sort of a 2D map for my
application. I've worked a lot with Java throughout the years and
already have some solutions to my problem. However, as a useful exercise
I was thinking of implementing this using a JTable and I am wondering
how difficult this is as I have little experience with JTables. At the
moment I am working my way through some JTable tutorials (custom table
models etc).

So, specific questions are:

1. Is it easy to draw polygons, arcs and circles in a cell in a table,
possibly by using an overriding paint(Graphics g) method? A simple yes
or no would do as I would quite enjoy the challenge of figuring it out.
At the moment I am thinking something along these lines, where JEntity
is a JLabel with it's own overriding paint method:
public class EntityTableCellRenderer extends JEntity implements
TableCellRenderer { // Normal code stuff goes here }
.

2. Is it easy to implement cells that can hold objects? Say, if an
earthquake hit an area, i.e. a cell, can the cell trigger some event
that is propagated to objects? Could an Observer pattern be used here,
so the objects observe the cell, or are there better ways of
notification? Any hints would be great.

3. Can a JPanel be easily added to a cell?

Thanks all, you're doing a great job with helping people here,

Sven