Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

Chapter 5. The Java Platform

Chapters Chapter 2, Chapter 3, and Chapter 4 documented the Java programming language. This
chapter switches gears and covers the Java platforma vast
collection of predefined classes available to every Java program,
regardless of the underlying host system on which it is running. The
classes of the Java platform are collected into related groups, known
as

packages . This chapter begins with an
overview of the packages of the Java platform that are documented in
this book. It then moves on to demonstrate, in the form of short
examples, the most useful classes in these packages. Most of the
examples are code snippets only, not full programs you can compile
and run. For fully fleshed-out, real-world examples, see

Java Examples in a Nutshell
(O'Reilly). That book expands greatly on this
chapter and is intended as a companion to this book.