1. Difference between skip() and seek()
2. Java Number Formatting
3. How RadomAccessFile is different from other streams?
4. Can you retrieve a disk file metadata from Java program?
5. StringTokenizer vs StreamTokenizer
6. Observer vs Observable
7. Timer vs TimerTask
8. final finally finalize
9. Frame Position
10. Generating random colors
11. static vs non-static
12. StringWriter vs StringBuilder