title: Can't read some swift Syntax
body: <p>I'm learning swift, but sometimes when i look at answers to questions and some of them are impenetrable. How do I implement the following?</p>
  
  <blockquote>
    <p>If you call - [UITableView setFrame:] from - [UITableViewController
    viewDidAppear:], it works:</p>
  
  <pre><code>- (void)viewDidAppear:(BOOL)animated
  {
      [self.tableView setFrame:CGRectMake(x, y, w, h)];
  }
  </code></pre>
    
    <p>In order to avoid having black bars on each side of the table view,
    set the background color of the application's main window to white:</p>
  
  <pre><code>[[[UIApplication sharedApplication] keyWindow] setBackgroundColor:[UIColor whiteColor]];
  </code></pre>
  </blockquote>
  
  <p>Do I override view did appear? what is with the <code>-(void)</code>, and why is the <code>self.tableView</code> line in brackets, and what's the final line represent?</p>