Welcome!
The purpose of this forum is to discuss using Eclipse to develop z/OS Java applications.
To get started, I'll mention that we have several documents available for download at:
http://dovetail.com/docs/jzos/index.html
In addition, there is a sample Eclipse project available for download that we use in our SHARE hands on lab: "z/OS Batch Java Applications". See the "Batch Sample" download link on the following page:
http://dovetail.com/downloads/jzos/index.html