To this moment, the fact that we as a developer has to face is that the development of language is showing a blossoming landscape. Perhaps not to like, nor to choose, we need is rational, rational choice of a can bring their greatest value of the language. With the growing prosperity of the desktop front-end RIA technology, it is necessary to begin to focus on such a language: ActionScript 3.
The client is never a friendly place for Java programmers. Java's technology at the client side, including applets, swing, and JavaFX, has so far yielded only limited results. JavaScript has almost no place like the Java language except for its name. and Adobe Flash, it does look like JavaScript, really. It may have been a few years ago that Flash was as understandable as JavaScript, but as ActionScript 3 appeared, everything changed.
This article will guide you through the basics of ActionScript and show how different it is from your familiar Java environment. In the end, you will give up any bias against ActionScript and begin to be interested in playing with it. One of the greatest things about Flex, Flash, and ActionScript is that they are completely free.
The author of this article gives the reader a piece of advice: I am not a language teacher, so I may overlook some language details. And I'm not going to show all of ActionScript 3 in this article. If you really need this content, there are a lot of great ActionScript 3 books. What I can give you is your first feeling about the language.
For more information, read the full text : Getting Started with Java programmer ActionScript 3.