# MASS-Java Core Documentation
This wiki page links to (1) basic language manual, (2) set up, (3)
extended features and (4) MASS-based graph DB system.
1.2. MASS-Java Developer’s Guide
2.1. Setting Up a MASS-Java Cluster
2.2. Setting Up a MASS-Java Cluster on Amazon EC2
3.1 Graph Computing - GraphPlaces, GraphAgents and SmartAgents
3.2. Event-Oriented Programming Using Annotations