Selenium WebDriver code for Tabbed Window

Set<String> windowIds = driver.getWindowHandles();
Iterator<String> It = windowIds.iterator();

System.out.println("---------------------------------");
System.out.println("Parent windo id "+It.next());
String TabbedWinId = It.next();
System.out.println("Tabbed windo id "+TabbedWinId);

driver.switchTo().window(TabbedWinId);