Then i try to sent data from one view to another
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "varView" {
        var viewController = segue.destinationViewController as ViewController
        var indexPath = self.tableView.indexPathForSelectedRow()
        viewController.varView = self.exams[indexPath.row]
    }
}
I get an error at witch says that ViewController is a undeclared?
                        
Rather than
prepareForSegueyou can directly callviewControllerfrom storyboard and pass the datadeclare variable in the file you want to pass the data and
#importthe header file in which you want to pass the data.then navigate as follow...