D.2. Java

Horstmann, Cay S., and Cornell, Gary, Core Java 2, 7th ed., Vols. 1 and 2, Upper Saddle River, NJ: Prentice Hall PTR, 2005.

This is an invaluable reference for any serious Java programmer. A reader interested in, for example, graphic user interfaces in Java should turn here next. Be sure to get the latest edition.