Simple SharedObject question (I think)

I am trying to understand how to write and read from the SharedObject to remember a login.
This was simple in Flex Builder 3, used the wizard and it built the login plumbing whether you wanted it or not.
I tried to get something from the video below, but obviouly there is more.
I run the code below and get:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at logtest/saveData()[C:\Inetpub\wwwroot\tiptest\src\logtest.mxml:26]
at logtest/___logtest_Button1_click()[C:\Inetpub\wwwroot\tiptest\src\logtest.mxml:48]
The sharedobject is null.
What am I not understanding.
http://tv.adobe.com/watch/adc-presents/using-shared-objects-in-flex-applications
<?xml version="1.0" encoding="utf-8"?>
<s:Application
xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="
library://ns.adobe.com/flex/spark" xmlns:mx="
library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
<s:layout>
<s:BasicLayout/>
</s:layout>
<fx:Script>
<![CDATA[
import flash.net.SharedObject;
private var sharedObj:SharedObject;
private function initSharedObject():void
SharedObject.getLocal(
"myContacts" );
if ( sharedObj.size > 0 ){
txtArea.text = sharedObj.data.contacts;
private function saveData(event:MouseEvent):void
sharedObj.data.contacts = txtInput.text;
sharedObj.flush();
lbl.text =
"Data Stored Locally";}
private function deleteData(event:MouseEvent):void
sharedObj.clear();
lbl.text =
"Local Data Deleted";}
]]>
</fx:Script>
<fx:Declarations>

</fx:Declarations>
<s:TextArea x="268" y="120" id="txtArea"/>
<s:Label id="lbl" x="268" y="279" width="161">
</s:Label>
<s:Button x="160" y="341" label="Save" click="saveData(event)"/>
<s:Button x="249" y="341" label="Delete" click="deleteData(event)"/>
<s:Button x="344" y="341" label="Button"/>
<s:TextInput x="268" y="68" id="txtInput"/></s:Application>

I added the creation complete and get this error now. I don't know what you mean by "storing of the Shared Object in the sharedObject property"
<s:Application
xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="
library://ns.adobe.com/flex/spark" xmlns:mx="
library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"creationComplete="initSharedObject()"
>
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at logtest/initSharedObject()[C:\Inetpub\wwwroot\tiptest\src\logtest.mxml:19]
at logtest/___logtest_Application1_creationComplete()[C:\Inetpub\wwwroot\tiptest\src\logtest .mxml:5]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\4.x\frameworks\projects\framework\src\mx\core \UIComponent.as:12528]
at mx.core::UIComponent/set initialized()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\UIComponent.as:1627]
at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.x\frameworks\projects\framewo rk\src\mx\managers\LayoutManager.as:759]
at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.x\frameworks\projects \framework\src\mx\managers\LayoutManager.as:1072]

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Date: Fri, 4 Nov 2011 05:35:16 -0600
From: [email protected]
To: [email protected]
Subject: 4 Simple Flash Questions that Are Stumping Me!
    Re: 4 Simple Flash Questions that Are Stumping Me!
    created by Ned Murphy in Flash Pro - General - View the full discussion
1 You can create your character as a movieclip and copy/paste that movieclip from one file to another. 2. One way to create a movieclip is to copy all the frame of the animation's timeline (select them all, right click the selection, choose Copy Frames), then create a new movieclip symbol (Insert -> New Symbol...etc) right click on its only keyframe and chhose Paste Frames. THat will put all the layers and frames you copied into the movieclip The only way to come close to being certain about the timing of you animation is to use code to keep track of the time, something like getTimer().. The frame rate that a file plays at is not a reliable means of dictating the time it takes due to a variety of factors which include the amount of content you are trying to process and performance limits of the user's machine.
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Simple performance question

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I have a int[][][][][] matrix, and a boolean add. The array is several dimensions long.
When add is true, I must add a constant value to each element in the array.
When add is false, I must subtract a constant value to each element in the array.
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for (int i=0;i<dimension1;i++)
for (int ii=0;ii<dimension1;ii++)
for (int iii=0;iii<dimension1;iii++)
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for (int i=0;i<dimension1;i++)
for (int ii=0;ii<dimension1;ii++)
for (int iii=0;iii<dimension1;iii++)
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erjoalgo wrote:
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