SDK for BlackBerry

Where开发者_运维知识库 do I get the free SDK for BlackBerry?

Go here, sign up and follow the instructions.

Everything is on http://na.blackberry.com:
Java Application Development Tools & Downloads
Web Development Tools & Downloads
BlackBerry Themes Development Tools & Downloads

It's depend on your requirement of the development.

Blackberry support three development environments. Please note that you must have installed necessary java version.

1. Blackberry JDE (Their own development environment). You can select the version according to your target devices. http://us.blackberry.com/developers/javaappdev/javadevenv.jsp

2. Eclips Plugin. http://us.blackberry.com/developers/javaappdev/javaplugin.jsp

3. Microsoft Visual Studio Plugin