June 2002
Intermediate to advanced
704 pages
15h 6m
English
book
Sun Certification Training Guide (310-025, 310-027): Java™ 2 Programmer and Developer Exams
by Jamie Jaworski
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Chapter 7, “Garbage Collection”
The Java garbage collector consists of a separate thread of execution that executes in the background and keeps track of all the objects that are used in a Java program. When an object is no longer reachable, it becomes subject to garbage collection.
A reachable object is an object that can be accessed directly or indirectly through the variables that are currently available to the program. An unreachable object is an object that is no longer reachable.
When an object becomes subject to garbage collection, it is not necessarily garbage collected immediately. It might, in fact, never be garbage collected. The program might terminate before the garbage collector gets around to reclaiming the object. Being subjected ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.