Once you have Eclipse 3.5 installed, follow these directions to configure it with the EclipseME plugin to develop J2ME applications.
If you need to install it, follow these instructions.
The instructions below work for Eclipse 4.2/Juno as well, in case you have a Juno installation.
These configurations work for both 32-bit and 64-bit Eclipse installations.
If you need to install it, follow these instructions.
Help
→ Install new Software
and click on the link at "What is already installed") you may skip ahead to Writing Your First Program below.