Hello ActionScript (with Flex Builder 2)

Main Learning's

• Use FlexBuilder 2
• Create an ActionScript Application
• Create an ActionScript class
• Run the ActionScript Application

Versions used:

• Flex Builder 2
• ActionScript 3

Assumptions: 

Flex Builder 2 is properly installed in your machine.  Hello Flex Builder 2 tutorial shows how to download and install flex Builder 2.

Tutorial Steps:

1. Open Flex Builder 2
2. Create a helloActionscript project
   1. In Flex Builder, select File > New> Flex Project,
   2. 
   3. Select Basic, and then click Next
   4. Type helloActioncript as the Project Name
   5. Select your code base location (in my case C:\codebase\flex\hello)
   6. 
   7. Click on Finish
   8. helloActionscript project on Flex Bulder 2
   9. 
3. Create HelloWorld ActionScript class
   1. Select File > New > ActionScript File
   2. 
   3. Click on Finish
   4. HelloWorld.as
   5. 
   6. Add the following ocde to HelloWorld.as
   7. package

      {

          public class HelloWorld

          {

              public function greeting():String

              {

                  return "Hello World!";

              }

          }

      }

   8. 
4. Update the HelloActionscript application to use the HelloWorld.as class
   1. Open the HelloActionscript.mxml file adn replace it for hte following code
   2. <?xml version="1.0" encoding="utf-8"?>

      <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*"

          layout="vertical"

          creationComplete = "initApp()" >

         

          <mx:Script>

              <![CDATA[

                  private var myHelloWorld:HelloWorld = new HelloWorld();

                 

                  public function initApp():void

                  {

                       mainTxt.text = myHelloWorld.greeting();

                  }

              ]]>

          </mx:Script>

       

          <mx:TextArea id = "mainTxt" width="400" />       

         

      </mx:Application>

5. Run your application
   1. Run/Run/helloActionscript
   2.