Present View Controller in Storyboard with a Navigation Controller - Swift

Question

I am currently showing a viewController in my new storyboard below:

var storyboard : UIStoryboard = UIStoryboard(name: AccountStoryboard, bundle: nil)
var vc : W         


        

Answer 1

 let secondViewController = self.storyboard?.instantiateViewControllerWithIdentifier("WelcomeID") as SecondViewController

        self.navigationController?.pushViewController(secondViewController, animated: true)

Class Name is : SecondCiewController