We cannot populate your world on the site. You have to add a call to your 'populate' method into your world constructor:
public WombatWorld()
{
super(8, 8, 60);
setBackground("cell.jpg");
populate(); // add this line and re-publish
}
A new version of this scenario was uploaded on Tue Mar 26 17:03:28 UTC 2013
sorry first program not that good
2012/3/2
2013/2/2
2013/2/2