UITableView example in iOS Playground with XCode 6 beta

UITableView.swift

// Playground - noun: a place where people can play

import UIKit

class ViewController: UIViewController ,UITableViewDelegate, UITableViewDataSource
{
    var tableView: UITableView!
    var items: NSMutableArray!
    override func viewDidLoad() {
        super.viewDidLoad()
        self.items = NSMutableArray(array: ["Hello 1","Hello 2","Hello 3"])
        self.view.frame = CGRect(x: 0, y: 0, width: 320, height: 480)
        self.tableView = UITableView(frame:self.view!.frame)
        self.tableView!.delegate = self
        self.tableView!.dataSource = self
        self.tableView!.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cell")
        self.view?.addSubview(self.tableView)
        
    }
    func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int{
        return self.items.count;
    }
    func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!{
        let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell
        cell.textLabel.text = "\(self.items[indexPath.row])"
        return cell
    }
}

var ctrl = ViewController()
// ctrl.viewDidLoad() //Not needed
ctrl.view

Xcode 8, Swift 3 version with a delegate call back. (open the assistant editor to interact with the table view)

import UIKit
import PlaygroundSupport

class MyViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

  var tableView: UITableView!
  let items = ["Hello 1", "Hello 2", "Hello 3"]

  override func viewDidLoad() {
    super.viewDidLoad()
    self.view.frame = CGRect(x: 0, y: 0, width: 320, height: 480)
    self.tableView = UITableView(frame:self.view.frame)
    self.tableView!.dataSource = self
    self.tableView!.delegate = self
    self.tableView!.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
    self.view.addSubview(self.tableView)
  }

  // DataSource
  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
    return self.items.count;
  }

  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as UITableViewCell
    cell.textLabel?.text = "\(self.items[indexPath.row])"
    return cell
  }

  // Delegate
  func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    let alert = UIAlertController(title: "Did Select", message: "Row at index path \(indexPath)", preferredStyle: .alert)
    alert.addAction(UIAlertAction(title: "OK", style: .default))
    present(alert, animated: true)
  } 
}
var ctrl = MyViewController()
PlaygroundPage.current.liveView = ctrl.view