The Java Tutorial - http://java.sun.com/docs/books/tutorial/index.html
Arnold K., Gosling J., Holmes D.: The Java Programming Language, Fourth
Edition, Addison Wesley Professional, 2005, ISBN 0-321-34980-6
Sierra K., Bates B.: Head First Java, 2nd Edition, O'Reilly, 2005, ISBN 978-0-
59-600920-5
Heller P., Roberts S.: Complete Java 2 Certification Study Guide, 5th Edition,
Sybex, 2005, ISBN 978-0-7821-4419-2
Kurniawan B.: Java 5: A Beginner's Tutorial, BrainySoftware, 2005, ISBN 978-0-
9752128-5-1