import UIKit var x: Int = 42 var x = 42 let y = 100 var myString = "Hello" // Control Flow if x < 50 { print("X is less than 50") } else { print("X is greater than or equal to 50") } // Classes class ViewController: UIViewController { // Instance Variables go here // Class functions go here } // Functions func printHello(){ print("Hello") } printHello() func printHelloMessage(helloString: String){ print(helloString) } printHelloMessage("Oi!")