var alert = UIAlertController(title: "Hello!", message: "Thanks for stopping by!!!", preferredStyle: UIAlertController.Style.alert)
let alertOKAction=UIAlertAction(title:"OK", style: UIAlertAction.Style.default,handler: { action in
print("OK Button Pressed")
})
let alertCancelAction=UIAlertAction(title:"Cancel", style: UIAlertAction.Style.destructive,handler: { action in
print("Cancel Button Pressed")
})
alert.addAction(alertOKAction)
alert.addAction(alertCancelAction)
self.present(alert, animated: true, completion: nil)
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