AXDT and eclipse

Hi currently im practicing how develop an as3 using eclipse3.5 and AXDT, i successfully installed AXDT to my eclipse but apparently i created a simple Hello World output using AXT but when i run, it shows blank on my screen i mean i even did not see the word Hello World output. What im i missing here? below is my code, i even don't get any errors:

HTML Code:

---

package
{
  import flash.display.Sprite;
 
  public class Sample extends Sprite
  {
      public function Sample()
      {
        trace("Hello World");
      }
  }
}

---

okay im so wrong about this hahaha so sorry :lolflag:

good, u sort that out, now my turn, please help me out with basic and few questions

1- how can we output trace... in my case, it simply don't output thing in console or output window

2- have u tried flex thing... basiclaly, docs starter guide says, we can use flex design view, and hit export.
in my case, when i do this, no changes from design view updates in code view??

any ideas??