I'm working on a simple app that stores some objects (persons) in an Array, I'm trying to use JOptionPane.showMessageDialog to list them (obj.toString) on the screen.

The problem is that after about six objects, the panel gets taller than the screen and it has no sidebar or some way to drag it to change its size.

Is there a way to implement one of those features or maybe set it to display the objects as a grid, columns or anything else that would fix it?