Can someone please explain for me:
1. What are the development tools that will help me do Java development in SAP?
2. Can I use non-SAP Java development tools (e.g. WebSphere or Eclipse) to develop custom extensions? Are these equivalent to the functionality provided by CE?
3. Given the options for doing Java development in SAP, are there any situations where I would need to do custom development in ABAP? (Is the Java functionality equivalent to the ABAP functionality?)
4. Is NetWeaver CE only meant for Java development, or can it also be used for ABAP development?