Continuing the successful format of The Java Class Libraries, the supplement contains descriptions of the new pacakges and classes introduced in the Java 2 Platform, Standard Edition, version 1.2. It also provides details on how the classes and methods have changed from JDK 1.1. Together, this supplement and The Java Class Libraries, Second Edition, Volume 1, provide a complete reference to the following packages: java.io, java.lang, java.lang.ref, java.lang.reflect, java.math, java.net, java.text, java.util, java.util.jar, and java.util.zip. The extensive class and member descriptions contain details crucial for developing robust and professional applets and applications. Each description is supplemented by an example that demonstrates the class or member in a relevant context. Numerous examples facilitate learning-by-example and provide useful code for your projects. The information is presented in an easy-to-use, dictionary-like format. Each class description includes: *a class hierarchy diagram showing its connection to related classes *a detailed overview describing its purpose and key concepts *a convenient member summary that briefly describes each member and arranges the me