Apple Swift Hello World App

gistfile1.txt

import UIKit

class ViewController: UIViewController {
    
    
    @IBOutlet var button: UIButton
    
    @IBOutlet var label: UILabel
    
    @IBAction func buttonTapped(AnyObject) {
        self.label.text = "Hello, World!"
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}