March 2005
Beginner to intermediate
1254 pages
104h 21m
English
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Chapter 10. java.lang and Subpackages
This chapter covers the
java.lang package which defines the core classes
and interfaces that are indispensable to the Java platform and the
Java programming language. It also covers more specialized
subpackages:
-
java.lang.annotation Defines the
Annotationinterface that all annotation types extend, and also defines meta-annotation types and related enumerated types. Added in Java 5.0.-
java.lang.instrument Provides support for Java-based "agents” that can instrument a Java program by transforming class files as they are loaded. Added in Java 5.0.
-
java.lang.management Defines “management bean” interfaces for remote monitoring and management of a running Java interpreter.
-
java.lang.ref Defines "reference” classes that are used to refer to objects without preventing the garbage collector from reclaiming those objects.
-
java.lang.reflect Allows Java programs to examine the members of arbitrary classes, invoking methods, and querying and setting the value of fields.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.