1. JDBC: Java Database Connectivity
2. JNDI: Java Name and Directory Interface
3. EJB: Enterprise JavaBean
4. RMI: Remote Method Invoke
5. Java IDL/CORBA
6. JSP: Java Server Page
7. Java Servlet
8. XML: eXtensible Markup Language
9. JMS: Java Message Service
10. JTA: Java Transaction Architecture
11. JTS: Java Transaction Service
12. Java Mail
13. JAF: JavaBean Activation Framework