Hi,
Welcome to the world of ABAP!
To run/debug/edit an ABAP program you'll need to
- get access to a SAP development system
- get a SAP logon
- get a developer role for your user
- run transaction SE38
- display / edit an existing ABAP program, or create a new one
ABAP is pretty easy to learn (if you already know another language) and great to program in.
The editor is very good.
cheers
Paul