class TableViewController: UITableViewController {
    let animals: [String] = ["Horse", "Cow", "Camel", "Sheep", "Goat"]

    // cell reuse id (cells that scroll out of view can be reused)
    let cellReuseIdentifier = "cell"

    // don't forget to hook this up from the storyboard
    @IBOutlet var personList: UITableView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Register the table view cell class and its reuse id
        self.personList.register(UITableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)

        // (optional) include this line if you want to remove the extra empty cell divider lines
        // self.tableView.tableFooterView = UIView()

        // This view controller itself will provide the delegate methods and row data for the table view.
        tableView.delegate = self
        tableView.dataSource = self
    }

    // number of rows in table view
    func personList(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return self.animals.count
    }

    // create a cell for each table view row
    func personList(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        // create a new cell if needed or reuse an old one
        let cell:UITableViewCell = self.tableView.dequeueReusableCell(withIdentifier: cellReuseIdentifier) as UITableViewCell!

        // set the text from the data model
        cell.textLabel?.text = self.animals[indexPath.row]

        return cell
    }

    // method to run when table view cell is tapped
    func personList(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        print("You tapped cell number \(indexPath.row).")
    }

}