November 2017
Intermediate to advanced
398 pages
10h 14m
English
Content preview from Java 9 High Performance
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Java heap
As soon you start your application, JVM asks for some memory from the operating system. It then provides this space for your application. Part of this space is called as Java heap memory, which is located at the bottom of the address space. This place is used for storing all the objects created by using the operator new.
As long as you have an active reference to this newly created object, it uses memory space in heap. Once you remove this reference, this object becomes an orphan and available for removal so that JVM can claim this allocated memory and provide it to other objects. In order to clean this dead reference, Java has provided a tool called garbage collector. This garbage collector then collects all the orphan objects ...
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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.