Java Topics

1. Core API
2. String StringBuffer StringBuilder
3. Threading and concurrency
4. Serialization and Externalization
5. Util package
6. Garbage Collection
7. Java 5.0 and 6.0 features
     Generics
     Annotations
     Enhanced For Loop
     Autoboxing and unboxing
     Typesafe Enums
8. JVM and Code Optimization
9. Class Loader Architecture
10. Java Security Sandbox
11. JMX
12. Cloning , Comparator Vs Comparable
13. Memory Model
14. Problems faced with multi threaded programs
15. General Java Design Patterns