opaque nouns -- Review of HTTP requests and responses -- HTTP as an API: -- Two HTTP clients in Java

exceptions in Java -- Appendix A: Answers to review questions -- Appendix B: OCA Certification Program.

Overview and Java review -- Array-based structures -- Restricted structures -- Linked lists and

guidelines -- App. H. Review checklist -- App. I. Comparing java to C++ -- App. J. An HTML tutorial -- App. K