Newbie question: Saving User Data on iPad

Here is some basic code that will work.

import flash.filesystem.*;

import flash.events.Event;

var f:File;

var fs:FileStream;

var myDATAstring:String;

function CheckSettings():void{

            f = File.applicationStorageDirectory.resolvePath("Storage_File_Name.txt");

            if(f.exists){

                getDATA();

            }else {   

             trace("Nothing stored yet");

            }

}

function getDATA():void{           

          fs=new FileStream();

          fs.addEventListener(Event.COMPLETE, onFileOpened);

          fs.openAsync(f, FileMode.READ);

}

function onFileOpened(e:Event):void{

            myDATAstring=fs.readUTFBytes(fs.bytesAvailable) as String;

           fs.close();  

}

//****** Use this to save the high score *******       

function SaveDATA(s:String):void{       

            f = File.applicationStorageDirectory.resolvePath("Storage_File_Name.txt");

           fs=new FileStream();

          fs.openAsync(f, FileMode.WRITE);

          fs.writeUTFBytes(s);

         fs.close();

}