December 1999
Intermediate to advanced
816 pages
20h 27m
English
Content preview from PURE Java™ 2
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How Objects Are Created by the JVM
Here are the steps performed by the JVM to make a new object:
Allocate memory to hold the object.
Walk up the class hierarchy to the top, via calling the constructor of the superclass from each higher-level class, for example, super() calls super() calls super(), all the way up to Object. Then start making an instance of each object going back down the inheritance hierarchy. So for a Frame object, this means
Make an object of type Object.
Make an object of type Component (although because Component is abstract this doesn't technically happen).
Make object of type Container
Make an object of type Window.
Make an object of type Frame.
Here's an analogy that might help you understand this activity. In order for me to ...
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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.