package {
    import mx.controls.*;
    import mx.core.*;
    import flash.events.*;
    import flash.utils.*;
  
    public class @ax-actionscript-misc-Clickometer {
      private static var lastClickTime:int = 0;
      private static var numClicks:int = 0;
      private static var grid:DataGrid;
      private static var button:Button;
    
      // Program entry point
      public static function main ():void {
        // Create a button
        button = new Button();
        button.label = "Click Quickly!";
        button.addEventListener(MouseEvent.CLICK, clickListener);
        
        // Create a data grid
        grid = new DataGrid();
        grid.dataProvider = new Array();
  
        // Add visual assets to the screen. Application.application is a 
        // reference to the top-level Flex application, a general container 
        // for controls and visual assets. 
        var mxmlApp:Application = Application(Application.application);
        mxmlApp.addChild(button);
        mxmlApp.addChild(grid);
      }
    
      private static function clickListener (e:MouseEvent):void {
        var now:int = getTimer();
        var elapsed:int = now - lastClickTime;
        lastClickTime = now;
        numClicks++;
        grid.dataProvider.addItem({Clicks: numClicks, "Time (ms)": elapsed});
      }
    }
  }