Java in a Nutshell, 3rd Edition
oreilly.comThe third edition of this bestselling book covers Java 1.2 and 1.3. It contains an advanced introduction to Java and its key APIs and provides quick-reference material on all the classes and interfaces in the following APIs: java.lang, java.io, java.beans, java.math, java.net, java.security, java.text, java.util, and javax.crypto.