5.1. Discussion
5.2. Comments
5.3. Java API
5.4. Primitive types and expressions
5.5. Statements
5.6. Variables
5.7. Control structures
5.8. Methods
5.9. Scope
5.10. Strings
5.11. Input and output
5.12. Arrays
5.13. Objects
5.14. Classes with only data
5.15. Classes with instance methods
5.16. Exception handling