how to hide empty rows in a UITableView and change the height of the Uitableview based on non-empty rows

Question

I have couple of problems with my UITableView.

1. When I add a UITableview on my page, by default it brings up some fixed number of rows,

Answer 1

- (void) viewDidLoad
{
  [super viewDidLoad];
  self.tableView.tableFooterView = [[[UIView alloc] init] autorelease];
}