Button 1

import UIKit

class ViewController: UIViewController {

 override func viewDidLoad() {
     super.viewDidLoad()
 let myButton = UIButton()
  myButton.setTitle("Hai Touch Me", for:  .normal)
// myButton.setTitle("✸", forState: .Normal)
     myButton.backgroundColor = UIColor.blue   // for background color
//  myButton.setTitleColor(UIColor.blueColor, forState: .Normal)
     myButton.frame = CGRect(x: 100, y: 50, width: view.frame.width - 200, height: 40)

      myButton.layer.borderWidth = 1;
  // let myColor = UIColor(red: 0.5, green:0.5, blue: 0, alpha: 1.0)
//  myButton.layer.borderColor = myColor.cgColor
 myButton.layer.borderColor = UIColor(red: 0.5, green:0.5, blue: 0, alpha: 1.0).cgColor
  myButton.layer.cornerRadius = CGFloat(10)

myButton.addTarget(self, action: #selector(ViewController.pressedAction),for: .touchUpInside)

  self.view.addSubview(myButton)
}

   func pressedAction(_sender: UIButton){
    print("you clicked on button ")
   }
/*
func pressedAction(sender: UIButton!) {

        }
*/

}