Java SE Development Kit (JDK) lets you build applications in Java SE and Java FX
Java SE Development Kit
JDK 6 Update 14
This release is Windows 7 support-ready and includes support for Internet Explorer 8, Windows Server 2008 SP2, and Windows Vista SP2. New features include the G1 garbage collector, plus performance and security enhancements.
What Java Do I Need?
You must have a copy of the Java Runtime Environment (JRE) on your system to run JavaFX applications and applets. To develop JavaFX applications and applets, you need the Java Development Kit, which includes the JRE.
Build rich internet applications (RIAs) with the JavaFX family of products. It includes the tools and platform SDK for developers, web developers, and designers to create dynamic applications for the next generation of web delivered content.
See the documents: http://java.sun.com/javase/downloads/index.jsp#docs
http://java.sun.com/javase/downloads/index.jsp