Java comes with many classes grouped as categories. A group gives common properties. A few groups are given below.
1. Wrapper classes
2. Listeners
3. Adapters
4. Layout managers
5. Byte streams
6. Character streams
7. Print streams
8. Filter streams
9. Wrapper streams
10. Components
11. Containers
12. Thread groups
13. Exceptions
For different miscellaneous topics on Java, refer View All Java Examples
