Selenium video 14 windowhandlers

Hi

I tried the below code in chrome as well in IE, There is no new window open, in the same window the links get open and window count always one
System.setProperty("webdriver.ie.driver", "C:\\tools\\MicrosoftWebDriver.exe");
WebDriver driver = new InternetExplorerDriver();
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
driver.manage().timeouts().pageLoadTimeout(15, TimeUnit.SECONDS);

Set<String> windowIds = driver.getWindowHandles();
System.out.println("Total windows ==="+windowIds.size());
Iterator<String> it = windowIds.iterator();
System.out.println(it.next());

System.out.println("===================");
driver.get("http://www.rediff.com/");
windowIds = driver.getWindowHandles();
it = windowIds.iterator();
String wid1 = it.next();
String wid2 = it.next();
System.out.println(wid1);
System.out.println(wid2);
System.out.println("Total windows =========="+windowIds.size());

output
Total windows ===1
1
===================
Exception in thread "main" java.util.NoSuchElementException
at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:713)
at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:734)
at module12.rediff4.main(rediff4.java:34)